Multiplication strategies

Arrays

100

♦♦♦♦♦♦♦♦♦

3 x 3 = 9

200

♫ ♫ ♫ ♫ ♫ ♫ ♫ ♫ ♫ ♫

5 x 2 = 10

300

∆∆∆ ∆∆∆ ∆∆∆ ∆∆∆ ∆∆∆

5 x 3 = 15

400

♥♥♥♥ ♥♥♥♥ ♥♥♥♥ ♥♥♥♥ ♥♥♥♥

5 x 4 = 20

500

■■■■■ ■■■■■ ■■■■■ ■■■■■ ■■■■■

5 x 5 = 25

Repeated Addition

100

2 x 2

2 + 2 = 4

200

5 x 3

5 + 5 + 5 = 15

300

6 x 4

6 + 6 + 6 + 6 = 24

400

7 x 6

6 + 6 + 6 + 6 + 6 + 6+6= 42

500

9 x 5

9 + 9 + 9 + 9 + 9 = 45

Equal Groups

100

2 x 3

2 groups of 3 = 6

200

4 x 3

4 groups of 3 = 12

300

6 x 3

6 groups of 3 = 18

400

4 x 5

4 groups of 5 = 20

500

8 x 6

8 groups of 6 = 48

Skip Counting

100

2 x 3

2 , 4 , 6

200

4 x 3

4 , 8 , 12

300

2 x 6

2 , 4 , 6 , 8 , 10 , 12

400

3 x 8

3 , 6 , 9 , 12 , 15 , 18 , 21 , 24

500

6 x 5

6 , 12 , 18 , 24 , 30

Surprise

100

What digit is in the tens place? 8,456

5

200

Half past 4

4:30

300

Write this number in expanded form 462

400 + 60 + 2

400

You have $1.00 but you give 75 cents to your friend. How much money do you have left?

25 cents

500

A quarter till 5

4:45