Math journal wk 4
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Transcript of Math journal wk 4
Math JournalWeek 4
Monday September 13, 2010
Warm Up
1.What place value? 59.7262.Write twelve and nine hundredths.3. Compare: 3.4 O 3.294.Round to the nearest
hundredth: 5.639
Tuesday September 14, 2010
Warm Up
1.Round: 2,456.762. 19.5 O 213. Smallest to Largest: 1.4; 3; 2.5; 84.Write the largest number you can
Make with the digits 5 6 2 9
Wednesday September 15, 2010
Warm Up
1.What place value? 1,242,0002.Draw 1.4 pizzas3.Find the smallest possible number using the digits 7, 4, 0, 2, and 54. 6,009 O 897
Thursday September 16, 2010
Warm Up
1.What place value? 1,242,0002.Draw two and three tenths cakes3.Find the largest possible number using the digits 0, 4, 1, 9, and 64. 6.90 O 6.9
Monday September 13, 2010
Facts Practice
1. 99 + 25 = 2. 40 – 25 = 3. 10 x 8 = 4. 7 x 7 = 5. 9 x 7 =
Tuesday September 14, 2010
Facts Practice
1. 50 – 23 = 2. 8 x 4 = 3. 1,000,000 – 5,016= 4. 6, 9, __, 155. 9 x 9 =
Wednesday September 15, 2010
Facts Practice
1. 88 + 88 =2. 14 x 1 = 3. 423 – 296 = 4. 15, 12, 9, __5. 8 x 0 =
Thursday September 16, 2010
Facts Practice
1. 12.5 – 3.5 =2. 3 x 7 x 2 = 3. 99, 88, __, 66 = 4. 8 + 13 = 13 + __5. 93 + 13 + 34 =
Week 4
Focus Skill
This week’s focus skill is rounding,ordering, and solving problemsusing decimals to the thousandths place
Focus Skill
Let’s review rounding withDecimals:
1) 578.67
Focus Skill
Now review how to compare decimal numbers. Remember, we use < > = to compare.
2) 9 O 7.2
Focus Skill
Compare:
3) 7 O 7.004) 101 O 100.97
Focus Skill
Now we will order decimal numbers. Make sure you know if it is smallest to largest or largest to smallest.
Focus Skill
Let’s try one:
Order from least to greatest:
4.5; 8; 4.35; 11; 1.3
Focus Skill
Order from greatest to least:
21; 15.12; 89.1; 37.99; 21.5
Focus SkillNow we will add and subtract with decimals.
Write the rule in your notes:When adding or subtracting decimals, line up the decimals
Focus Skill
Let’s try one together:
8.3 + 6.7 =
8.3+ 6.7 .
Line up the decimals
Focus Skill
You try one:
7.3 + 11.4 =
.+ .___ .
Line up the decimals
Focus Skill
You try one:
61.1 + 25.93 =
.+ .___ .
Line up the decimals
Add missing zeroes
Focus Skill
You try one:
44 + 1.8 =
.+ .___ .
Line up the decimals
Add missing zeroes
Focus Skill
Subtraction works the same way:
8.3 - 5.1 =
8.3- 5.1 .
Line up the decimals
Focus Skill
You try one:
5.2 - 2.4 =
.+ .___ .
Line up the decimals
Focus Skill
You try one:
90 - 15.7 =
.+ .___ .
Line up the decimals
Add missing zeroes
Focus Skill
You try one:
10.8 – 8.21 =
.+ .___ .
Line up the decimals
Add missing zeroes
Focus Skill
Your turn: Line up the decimals
Add missing zeroes
1)4.5 + 2.4 =2)7.2 – 5.5 =3)12 + 6.6 =4)9.1 – 6 =5)77 + 8.12 =