Subtraction - 3P Learning · See if you can finish these subtraction words. m t find the d 2 Write...

GRADE 2

SubtractionWORKSHEETS

Grade 2 | SUBTRACTION | 2.OA.2 1Copyright © 3P Learning

Subtraction – facts to 10 review

1 Finish these number facts.

2 Add the missing numbers to make these number facts true.

3 Drawstemstomatchtheflowerstothecorrectpots.

a 8− = 4

c −3=5

b 10− = 6

d −9=1

a 5−2=

5−4=

5−1=

5−0=

b 10−3=

10−6=

10−9=

10−8=

c 7−3=

8−5=

3−2=

9−6=

2 7 106 91 43 5 80

10−6 7−5 9−5 5−3 8−5

2 4 3

2Copyright © 3P Learning Grade 2 | SUBTRACTION | 2.OA.1, 2.OA.2

Subtraction – take away

1 We use different words for “subtract.” Seeifyoucanfinishthesesubtractionwords.

m t findthed

2 Writethenumberfacttomatchthestoryandpicture. Stacycooked8muffins.Shegave4toherfriend.Howmanymuffinsdid

Stacyhaveleft?

− =

When we subtract, we “take away” one number or amount from another.Look at this subtraction story.

TheSmiths’cathad7kittens.Theygave5away. Howmanykittensdidtheyhaveleft?Theyhad2left.

We write this number fact as 7 − 5 = 2

3 Writeasubtractionstorythatwouldfitthispicturestory.Finishthematching number fact.

− =

3Copyright © 3P Learning Grade 2 | SUBTRACTION | 2.NBT.5

Subtraction – counting on and counting back

1 Usethenumberlineaboveandcountbacktosolvethesesubtractionproblems.

a 17−4=

d 25−2=

b 18−2=

e 30−4=

c 19−5=

f 21−2=

Countingbackisahelpfulstrategytousewhenweonlyhavetosubtractasmallnumber.Numberlinescanhelpusdothis.

Look at 23 − 4 =

Westartat23.Wejumpback4spacesto19.23 − 4 = 19

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

3 Wouldyouusethecountingbackstrategy tosolvethisproblem?Whyorwhynot?

25−22=

2 Lookatthesenumberlines.Whatsubtractionfactdoeseachshow?

a – = 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

b – = 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

?



1 Solvetheseproblems.Circlethesmallernumber.Countonuntilyougettothebiggernumber.Howmanynumbersdidyoucount?

a 28− 23 =

c 23−20=

e 18−14=

b 19−14=

d 30−26=

f 31−28=

We know that addition and subtraction can undo each other. This means we can use the addition strategy of counting ontosolvesubtractionproblems.We use counting on when the difference betweenthenumbersissmall. 24 − 19 =

Wecountonfromthesmallernumberof19 untilwegetto24. 19 20 21 22 23 24

Wecounted5morenumbers. 24 − 19 = 5

2 Usecountingontosolvetheseproblems.Writethenumberfacts. a Jacksonsaved$27.Hespent$22during

atriptothemall.Howmuchmoney doeshehaveleft?

− =

b Laracaught28fish.Sheput26back. Howmanydidshekeep?

− =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

?



1 Useyourrulertohelpsolvetheseproblems.Decideifitiseasiertousecounting on or counting back.

a 30−3=

d 24−20=

b 25−4=

e 18−16=

c 27−2=

f 12−9=

Rulerscanhelpuscountonandback.Wecountthejumpsorthespacesbetweenthetwonumbers.

17 − 13 = ?

17 − 13 = 4

2 Youwillneedaruler.Choosetwonumbersontheruler.Writethenumbersinafactboxbelow,andputthebiggernumberfirst.Decideifyouwanttousecountingonorbackandcountthejumpstofinishthefact.

− =

− =

− =

− =

− =

− =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20cm



Ifwecancountbackby1,2,or3,thenwecancountbackby10,20,and30.

Look at 65 − 20 = Westartat65andcount back by 10s.20is2tens.

65 − 20 = 45

a 46−20=

d 24−10=

b 61−10=

e 34−10=

c 70−30=

f 55−20=

a 4−1=

b 5−3=

c 9−2=

40−10=

50−30=

90−20=

400−100=

500−300=

900−200=

1 Usethenumbergridtohelpsolvetheseproblems.

2 Canyoufindpatternstohelpyoucompletethesesetsoffacts?

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70

?

7Copyright © 3P Learning Grade 2 | SUBTRACTION | 2.NBT.8, 2.OA.1

Subtraction – relating addition and subtraction

Becauseadditionandsubtractionarerelated,wecanuseouradditionstrategiestohelpussolvesubtractionproblems.

Look at 16 − 8 = ?

Weknowthedoublesfact8+8=16,sowecanuseittoquicklywork out that 16 − 8 = 8

a 10 −5 =

20 −10=

50 −25=

100−50=

b 18 −9 =

16 −8 =

12 −6 =

14 −7 =

c 22−11=

40−20=

30−15=

32−16=

1 Useyourdoublesadditionstrategiestosolvethesesubtractionproblems.

2 Solvethese. a Lucy is 4yearsolderthanMarcus.Marcusis4.HowoldisLucy?

b Mohammedate14 strawberries. Sara ate double that amount. HowmanymorestrawberriesdidSaraeatthanMohammed?

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

8Copyright © 3P Learning Grade 2 | SUBTRACTION | 2.OA.1

Subtraction – difference

1 Showthejumpsandsolvetheproblem.

“Iamthinkingof2numbers.Theyhaveadifferenceof3. The bigger number is 7.”Weknowthebiggernumberis7.Tofindthedifference,wejump back3spaces.

7 − 3 = 40 1 2 3 4 5 6 7 8 9 10

b Iamthinkingof2numbers.Theyhaveadifferenceof2. The bigger number is 4.

I start on .Ijumpback . − =

0 1 2 3 4 5 6 7 8 9 10

c Iamthinkingof2numbers.Theyhaveadifferenceof3. The bigger number is 7.

I start on .Ijumpback . − =

0 1 2 3 4 5 6 7 8 9 10

a Iamthinkingof2numbers.Theyhaveadifferenceof5. The bigger number is 8.

I start on 8 .Ijumpback 5 . 8−5=

0 1 2 3 4 5 6 7 8 9 10


Subtraction – exploring subtraction problems

1 Solveusingastrategyofyourchoice. a Marabuys17gummyworms.Shegivessometoherfriendandthen

has13left.

17 − = 13

b Lucashas$20.Hespendssomeatthemallandhas$14left.

$ − $ = $

Sometimes in subtraction stories, we know the ending but we don’t knowalloftheproblem.Lookatthisstory.

Grade3had22jumpropes.TheygavesometoGrade2. Thentheyhad17left.

We knowtheystartedwith22ropes.We knowtheyendedupwith17ropes.What we don’t knowishowmanyropestheygavetoGrade2.

22 − = 17

Counting back is a good strategy to use here because the difference betweenthenumbersissmall.Wecountbackfrom22to17.17 18 19 20 21 22

Wecountedback5.22 − 5 = 17


Subtraction – exploring subtraction problems

1 Solve. a Mr.Marshassometomatoes.5wereeatenbybugssoheonlyhas

7lefttoeat.Howmanydidhehaveatthestart?

− 5 = 7

b Tiatookherallowancetothemall.Shespent$14andwenthomewith$3.Howmuchallowancedidshehaveatthestart?

$ − $ = $

Sometimesweknowtheendingandthemiddlebutwedon’tknowthestartoftheproblem.Lookatthisstory.Mrs.Lukehadsomecows.Shesold4atthemarket.Shehad8left.We knowshesold4cows.We knowsheendedupwith8.What we don’t know is how many cows she started with.

− 4 = 8

Agoodwaytosolvethisistocounton. We count on 4 more starting at 8. 8 9 10 11 12

Let’sputin12andseeifthefactmakessense.12 − 4 = 8

Yes, it does.

11Copyright © 3P Learning Grade 2 | SUBTRACTION | 2.NBT.5, 2.NBT.9

Subtraction – subtracting 2-digit numbers

1 Warmupbysplittingthesenumbersintotensandones.

3 Write the number fact to match.

2 Crossoffthetensandonesblockstohelpsolvetheseproblems.

Look at 45 − 23 =

Howdowesolvethis?Ithelpstothinkofthenumbersastensandones.

45is4 tens and 5ones.23is2 tens and 3 ones.

We subtract 2 tens and 3onesfrom45.

45 − 23 = 22

a 27istens ones

c 12istens ones

b 98istens ones

d 75istens ones

a 28−17=

c 46−12=

b 34−13=

d 38−25=

?

− =


Subtraction – jump strategy

Wecanalsousenumberlinestohelpussubtract2-digitnumbers.

36 − 14 = ?

14is1tenand4ones.Wejumpback1ten,then4ones.

36 − 14 = 22

1 Usethejumpstrategytosolvetheseproblems.Showthejumpsandfillinthemissingnumbersonthenumberlines.

a 59−22= 22is______tensand______ones

b 38−21= 21is______tensand______one

c 65−33= 33is______tensand______ones

16 22 23 24 25 26 36

−10−4

35 45 55 65

18 28 38

39 49 59


1 Usethenumbergridandthejumpstrategytosolvetheseproblems.

Subtraction – jump strategy

Numbergridscanalsohelpussubtractusingthejumpstrategy.

57 − 32 = ?

32is3tensand2ones.Wemake3tensjumpsand 2onesjumpsback. This means wejump forthetensjumpsand

fortheonesjumps.57 − 32 = 25

1 2 3 4 5 6 7 8 9 10

11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60

61 62 63 64 65 66 67 68 69 70

71 72 73 74 75 76 77 78 79 80

a

c

b

d

67−34=

34is__tens and__ones21 22 23 24 25 26 27 28

31 32 33 34 35 36 37 38

41 42 43 44 45 46 47 48

51 52 53 54 55 56 57 58

61 62 63 64 65 66 67 68

35−24=

24is__tens and__ones1 2 3 4 5 6 7

11 12 13 14 15 16 17

21 22 23 24 25 26 27

31 32 33 34 35 36 37

64−13=

13is__ten and__ones

41 42 43 44 45

51 52 53 54 55

61 62 63 64 65

58−26=

26is__tens and__ones21 22 23 24 25 26 27 28 29 30

31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60


Subtraction – written methods, no regrouping

Sometimesweuseawrittenformattohelpussolvesubtractionproblems.Wesetupproblemsvertically asthishelpsusworkwiththetensandonesseparately.Whenweworkproblemsoutthisway, wesubtracttheonesfirst,thenthetens.4ones−1 one = 3 ones3tens−2 tens = 1 ten1 ten and 3 ones is 13 34 − 21 = 13

1 Finishthesesubtractionproblems.Remembertosubtracttheonesandthen subtract the tens.

T O

3 4

− 2 1

1 3

a b c

d e f

T O

4 6

− 1 5

T O

5 5

− 1 4

T O

3 9

− 2 2

T O

6 4

− 2 1

T O

4 8

− 3 3

T O

6 9

− 5 3

15Copyright © 3P Learning


2 Setuptheseproblemsverticallyandsolve.

a 34−12= b 42−21= c 58−42=

1 Solvetheseproblems.Iftherearenoonesintheanswer,wewrite0. Iftherearenotensintheanswer,weleavetheboxblank.

a b c

d e f

T O

7 2

− 2 2

T O

2 7

− 2 3

T O

−

T O

5 4

− 5 1

T O

7 5

− 5 5

T O

−

T O

8 4

− 5 4

T O

2 9

− 2 2

T O

−

Grade 2 | SUBTRACTION | 2.NBT.5



1 Solvethesewordproblems.Showthenumberfactsbothways. a Grade2raised$96towardsnewsportsgear.Theyspent$34on

anewcricketset.Howmuchdotheyhavelefttospend?

− =

b FarmerJoehas65chickens.52ofthemlayeggs.Howmanydon’tlayeggs?

− =

c Dannyisgiven$53forhisbirthday.Hespends$31.Howmuchdoeshehaveleft?

− =

T O

−

$

T O

−

T O

−

$


a

d

g

b

e

h

c

f

i


Written methods – subtraction to 99, no regrouping

1 Subtract these using the written method. Subtract the ones, then the tens.Writeyouranswerneatlyinlinewiththeplacevaluecolumns:

Hereisthewrittenmethod for subtraction. The longsandshortsshowyoutheplacevalue.Butyouactuallyusedigits.

tens ones

3 8

– 1 5

2 3

tens ones

–

tens ones

6 3

– 3 2

tens ones

8 7

– 4 3

tens ones

7 7

– 5 3

tens ones

5 8

– 4 2

tens ones

7 8

– 3 2

tens ones

6 8

– 3 5

tens ones

6 7

– 1 2

tens ones

3 4

– 1 3

tens ones

9 7

– 2 6


Theseplacevalueboardsshowhowwecanregroupatenintoones.

4tensand1oneisnow3tensand11ones.

1 For each set of placevalueboards,regroupatenintoones and show the new amount on the next board. Just use straight linesfortensandsquaresforones.

2 Completethissubtractionproblemshowninlongsandshorts.Regroupa tenintoonesandthensubtract.Showyouranswerinlongsandshorts:

tens onestens onesa

b tens onestens ones

tens ones tens ones

tens ones tens ones

–

tens ones tens onestens ones

– =


Written methods – subtraction to 99 with regrouping



Nowthatyoucanregroupatenontheplacevalueboard,wecanlookatwrittensubtractionwithregrouping.

Hereis62–18showninlongsandshorts. Ifweregroupatenintoones,wecannow subtract the ones.

Nowlookatthewrittenmethodforsubtractionwhenregrouping.

First,estimatetheanswer: 60–20=40.Youestimatebyroundingtothenearest10.

Lookattheones.Wecan’tsubtract8from2,soweregroup a ten into ones.

Wenowhave12ones.12subtract8is4,sowewrite4intheonescolumn.Nowsubtractthetens.5tenssubtract1tenis 4tens.Write4inthetenscolumn.

Isouranswerreasonable?Yes,becauseitisclosetoourestimate.

3 Completethesewrittensubtractionproblemswithregrouping.Startbywritingyourestimate:

tens ones

–

tens ones

6 2

– 1 8

4 4

e: 40

15

a b c

tens ones

7 2

– 2 8

e:

tens ones

5 2

– 4 3

e:

tens ones

6 1

– 3 4

e:

Continuedonpage20.



a

=

b

=

c

=

3 Completethesewrittensubtractionproblemswithregrouping.Startbywritingyourestimate:

Continuedfrompage19.

d

g

e

h

f

i

4 Whatisthedigitbehindthestar?

tens ones

5 6

– 1 8

e:

tens ones

4 1

– 2 4

e:

tens ones

6 2

– 3 3

e:

tens ones

7 6

– 3 9

e:

tens ones

9 6

– 2 8

e:

tens ones

9 7

– 6 8

e:

tens ones

7 2

– 5

1 6

tens ones

8

– 5 9

2 5

tens ones

7 9

– 5

2 4

Subtraction - 3P Learning · See if you can finish these subtraction words. m t find the d 2 Write...

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Transcript of Subtraction - 3P Learning · See if you can finish these subtraction words. m t find the d 2 Write...