Click your or arrow keys to move the card ahead! For your IPAD swipe the screen. Using Your Abacards ® Click and follow along using your abacus. After.

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Presentation transcript:

Click your or arrow keys to move the card ahead! For your IPAD swipe the screen. Using Your Abacards ® Click and follow along using your abacus. After each click say what you saw. Practice saying what you will see before you click! After using the Abacards ®, make up problems. Forward Backward

1x4=5-1=4 1x4= 1x5 -1=4

2x4=10-2=8 2x4= 2x5 -2=8

3x4=15-3=12 3x4= 3x5 -3=12

4x4=20-4=16 4x4= 4x5 -4=16

5x4=25-5=20 5x4= 5x5 -5=20

6x4=30-6=24 6x4= 6x5 -6=24

7x4=35-7=28 7x4= 7x5 -7=28

8x4=40-8=32 8x4= 8x5 -8=32

9x4=45-9=36 9x4= 9x5 -9=36

10x4=40 Friendly!

10x4= easy =40 Let’s look at the results of Abacus play with 4s Do you see a pattern when you multiply by 4? To multiply by 4 by a number you just multiply the number by 5 and subtract the number! 9x4=9x5-9=45-9=36 8x4=8x5-8=40-8=32 7x4=7x5-7=35-7=28 6x4=6x5-6=30-6=24 5x4=5x5-5=25-5=20 4x4=4x5-4=20-4=16 3x4=3x5-3=15-3=12 2x4=2x5-2=10-2=8 1x4=1x5-1 = 5-1=4 Click To Start Again Friendly Add/Subtract √ or or √ 83/ Mental math is easier if you use friendly addition/subtraction!