Multiplication & Division

Grouping

100

Using grouping, complete the problem 6 x 4.

** ** ** ** ** ** ** ** ** ** ** ** (24)

200

32 ÷ 4

**** **** **** **** **** **** **** **** (8)

300

There are 36 cookies at a party. There are 9 children at the party. How many cookies does each one get?

** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** (4 cookies)

400

There are 5 fish tanks. Each fish tank has 12 fish. How many fish are there all together?

****** ****** ****** ****** ****** ****** ****** ****** ****** ****** (60 fish)

500

What is the tip Ms. Allen and Ms. Willis gave you for completing a problem using grouping?

Use the smaller number for your number of groups.

Arrays

100

Create an array for the problem 9 x 8.

********* ********* ********* ********* ********* ********* ********* ********* (72)

200

35 ÷ 7

***** ***** ***** ***** ***** ***** ***** (5)

300

There are 28 chairs and we want to put them into 4 equal rows. How many chairs are in each row?

******* ******* ******* ******* (7 chairs)

400

There are 12 lines with 4 ants in each line. How many ants are their all together?

************ ************ ************ ************ (48 ants)

500

When making an array, all rows must be _______?

Equal

Repeated Addition/Subtraction

100

Using repeated subtraction, complete the problem 42÷ 7.

42 - 7 = 35 35 - 7 = 28 28 - 7 = 21 21 - 7 = 14 14 - 7 = 7 7 - 7 = 0 (6)

200

9 x 6

9 + 9 + 9 + 9 + 9 + 9 = 54

300

Luigi makes 5 pizzas a day. How many pizzas will he have made after 6 days?

5 + 5 + 5 + 5 + 5 + 5 = 30 pizzas

400

Leo started out with 72 pencils. He uses 9 pencils a day. How many days will it take for Leo to use all of his pencils?

72 - 9 = 63 63 - 9 = 54 54 - 9 = 45 45 - 9 = 36 36 - 9 = 27 27 - 9 = 18 18 - 9 = 9 9 - 9 = 0 (8)

500

When doing repeated subtraction, how do you find the answer?

You count the number of times you subtracted from the original number.

Speed

100

1 x 0

0

200

5 x 3

15

300

9 x 4

36

400

8 x 7

56

500

24 ÷ 2

12 *Teacher will review work

Random

100

Use the commutative property on the problem 26 x 7.

7 x 26

200

When making an array with division, which number determines the number or rows?

The smaller number

300

How many 10's make up one hundred?

10

400

What is another name for multiplication?

Repeated Addition

500

What is the quickest method for completing multiplication or division problems?

FLUENCY