Review: Multiplying and Dividing Whole Numbers

Using mental math, what is the quotient?

 $2,100\div\ 30$  

• 7

• 70

• 700

• 7,000

Find the product:

 $32\ \times\ 871$  

• 28,972

• 28,872

• 27,972

• 27,872

Find the BEST estimate of
 $27\ \times\ 89$  

• 25 x 100 = 2,500

• 20 x  80  = 1,600

• 30 x 80 =  2,400

• 30 x 90 = 2,700

Find the quotient.
 $840\ \div\ 60$  

• 12

• 13

• 14

• 15

Using compatible numbers, find the BEST quotient.
 $641\ \div\ 92$  

•  $600\ \div60\ =\ 10$  

•  $700\ \div\ 70\ =10$  

•  $720\ \div\ 90\ =\ 8$  

•  $630\ \div\ 90\ =\ 7$  

The fall festival committee purchased 985 small prizes. The prizes will be divided equally among 30 game booths. After the prizes have been divided, how many prizes are left?

• 32

• 30

• 25

• 15

If 1 banana contains 105 calories, how many calories are in 12 bananas?

• 1,500

• 1,260

• 1,200

• 1,160

 $12\ \times\ 10^{0\ }$ =

• 12

• 120

• 1,200

• 12,000

Which TWO expressions are equal to 73 x 4?

• 70 + 3 x 4

• 70 x 3 x 4

• (70 x 4) x (3 x 4)

• (70 x 4) + (3 x 4)

• (70 + 3) x 4

The expression 40 x 3 + 6 represents a way to check the solution to which division problem?

• $120\ \div3$

• $126\ \div\ 6$

• $126\ \div\ 3$

• $124\ \div\ 6$