BIG IDEAS 1Chapter 2 Review

Draw a quick picture that shows the sentence. Write the related multiplication sentence.

4 + 4 + 4 + 4 + 4 = 20

5 groups of 4 = 205 x 4 = 20

4 + 4 + 4 + 4 + 4 = 20

Draw a quick picture that shows the sentence. Write the related division sentence.

21 – 7 – 7 – 7 = 0

21 – 7 – 7 – 7 = 021 divided into groups of 7 = 3 groups

21 ÷ 7 = 3

Marie ordered 20 slices of pizza. Each of her friends will eat 2 slices of pizza. If 4 friends already have eaten, how many more people can eat?

2 pieces each

4 friends have already eaten

20 slices

2 x 4 = 8 slices eaten

20 – 8 = 12 slices left

12 ÷ 2 = 6

6 friends can still eat

Jayna bought lunch for her friends. She bought 2 salads, 3 sandwiches, and 5 drinks. How much change did she get from $50?

Item Price

Sandwich $5

Salad $6

Drink $3

$15 + $12 + $15 = $42$50 - $42 = $8

Item Price Cost

Sandwich $5 3 x 5 = $15

Salad $6 2 x 6 = $12

Drink $3 5 x 3 = $15

Alyssa used the number line to model an equation. What division equation does her model represent?

0 52 431 6

0 52 431 6

6 ÷ 2 = 3

Suppose a roller coaster at Busch Gardens has rows of 6 seats. The roller coaster is full. Which number could be the total number of people on the ride?

14 45 48 57

14 45 48 57

48 ÷ 6 = 8

48 is the only number listed divisible by 6

David places an equal number of books on each of 5 shelves. He drew this array to show the total number of books on the shelves. Write the multiplication expression represented by the array.

5 rows of 6 =

5 x 6 = 30

Taylor put her 24 quarters in 8 equal rows and drew this model. Write the expression you could use to find out how many quarters are in each row.

     

     

     

     

     

     

     

     

24 ÷ 8 = 3

     

     

     

     

     

     

     

     

Eva is playing a fact family matching game. Which card shows an equation belonging to the same fact family as the equation on Eva’s card?

8 x 4 = 32

Eva’s Card

8 x 5 = 32

32 ÷ 8 = 4

8 + 4 = 12

32 ÷ 6 = 32

8 x 4 = 32

Eva’s Card

32 ÷ 8 = 4

Jonathon has 42 stickers. He divides the stickers equally among him and his 6 friends. How many stickers does Jonathon get?

6 friends plus Jonathon equals 7

42 ÷ 7 = 6

6 stickers each

( ___ x ___ ) + ( ___ x ___ )

Timothy drew rectangles on grid paper to find the product of 9 and 8, as shown below. Complete the expression to describe Timothy’s drawing.                              

                             

                             

                             

                             

                             

                             

                             

                             

                             

9 9

4 4

( 9 x 4 ) + ( 9 x 4 )

                             

                             

                             

                             

                             

                             

                             

                             

                             

                             

9 9

4 4

Shayla read 7 pages in one day. Josiah read 4 times as many pages Shayla. How many pages did Josiah read?

7 x 4 = 2828 pages

The space shuttles that were in service in 2000 were Atlantis, Discovery, Columbia, and Endeavour. Each space shuttle used 2 solid rockets boosters. How many solid rocket boosters are used on the shuttles all together?

4 x 2 = 8

8 boosters

Tyler is writing a list of multiples of 4. What digits can NOT be in the ones place? (There are five of them!)

The multiples of 4 are:4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, …

1, 3, 5, 7, and 9 can not be in the ones place.

Scott spent $54 on 9 PS3 games. The cost of each game was the same. Write a multiplication sentence that can be used to find the cost of one game.

9 x ___ = 54

Matthew buys packs of baseball cards. If each pack has 7 cards and Matthew has 56 card total, which factor is missing?

x 7 = 56

x 7 = 56

8 x 7 = 56

Ben practices karate for 2 hours a day. He practices 4 days a week. How many hours does Ben practice in 3 weeks?

2 x 4 = 8Ben practices 8 hours in one week.

8 x 3 = 24

Ben practices 24 hours in 3 weeks.

Good luck on your test!