Multiplying Whole Numbers
53 * 26
1,378
274 / 8
34 R. 2
Ava has 57 tablets of paper. Each tablet has 45 pages. How many total pieces of paper does she have?
2,565 pieces of paper
Draw an array with the number sentence 4 x 2.
**
**
**
**
Mrs. Meyer bought 225 flowers and 12 vases. She wants to put the same number of flowers in each vase. How many flowers are in each vase?
18 flowers
(Ignore it for the remainder)
83 x 51
4,233
576 / 24
24
A brick wall is made of 328 bricks. If a bricklayer is building 26 walls, how many total bricks will he use?
8,528 bricks
What multiplication sentence matches the array shown?
+++++++++
+++++++++
2 x 9
Ms. Petrella has 3,528 stickers. She wants to share them equally amongst her 53 students. How many extra stickers would be left over?
30 stickers
(Use it for the remainder)
1,004 * 15
15,060
192 / 16
12
Which expression has a quotient of 400?
A) 800 / 20 B) 8,000 / 2
C) 8,000 / 20 D) 80,000 / 20
C) 8,000 / 20
List all possible arrays for 20.
1 x 20, 20 x 1, 2 x 10, 10 x 2, 4 x 5, 5 x 4
Mrs. Groover needs 75 markers for her class to do an art project. A pack has 9 markers in each. How many packs does Mrs. Groover need?
9 packs
(Round it for the remainder)
697 * 46
32,062
1,725 / 41
42 R 3
A school has 617 students. Each class has between 28 and 32 students. Which is the best estimate of the number of classes in the school?
A) 14 classes B) 20 classes
C) 30 classes D) 60 classes
B) 20 classes
Charlee wants to arrange 16 chairs for audience members to sit during her puppet show. How many possible arrangements could she make with the 16 chairs if there are an equal number of chairs in each row and column? (Use arrays)
Answer 5 different arrangements
(16 x 1 , 1 x 16, 2 x 8 , 8 x 2 , 4 x 4)
Jarrod had 110 pounds of strawberries. He placed an equal amount of strawberries in each of 6 crates. How many pounds of strawberries were in each crate?
18 2/6 pounds or 18 1/3 pounds or 18.333 pounds
(Report it for the remainder)
2,284 * 38
86,792
870 / 62
14 R 2
Which does NOT show a reasonable estimate of 360 x 439?
A) 90,000 B) 140,000
C) 160,000 D) 180,000
A) 90,000
Leo says that the number 100 has more than 10 arrays. Sam argues that it has less than 10. Who do you agree with and why?
I agree with Sam because all of the factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, 100. All of the arrays you can make with those factors are 100 x 1, 1 x 100, 2 x 50, 50 x 2, 4 x 25, 25 x 4, 5 x 20, 20 x 5, 10 x 10. There are 9 possible arrays.
Tommy's Auto Mall needs to transport 108 cars. A moving truck can fit 7 cars on each bed. How many trucks does Tommy need to relocate all his cars?
16 trucks
(Round it for the remainder)