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Multiply By 2 or 4
Multiply by 3 or 6
Multiply by 5 or 10
Multiply by 7 or 8
Multiply by 4 or 9
100

2x5= 

2x5= 10

100

3x3=

3x3=9

100

5x5=

5x5=25

100

7x2=

7x2=14

100

9x2

9x2=18

200

4x5=

4x5=20

200

6x3=

6x3=18

200

10x4=

10x4=40

200

8x3

8x3=24

200

4x9

4x9=36

300

2x8= 

2x8=16

300

3x9=

3x9=27

300

5x7=

5x7=35

300

7x6=

7x6=42

300

9x9

9x9=81

400

4x9=

4x9= 36

400

6x8=

6x8=48

400

10x8=

10x8=80

400

7+7=

7+7=49

400

4x11

4x11=44

500

2x12

2x12=24

500

6x11

6x11=66

500

5x9=

5x9=45

500

8x9=

8x9=72

500

4x7

4x7=28