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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 on theme: "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."— Presentation transcript:

1 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

2 1x3= 5-2=3 1x3= 1x5 -1x2 =3

3 2x3=10-4=6 2x3= 2x5 -2x2 =6

4 3x3=15-6=9 3x3= 3x5 -3x2 =9

5 4x3=20-8=12 4x3= 4x5 -4x2 =12

6 5x3=25-10=15 5x3= 5x5 -5x2 =15

7 6x3=30-12=18 6x3= 6x5 -6x2 =18

8 7x3=35-14=21 7x3= 7x5 -7x2 =21

9 8x3=40-16=24 8x3= 8x5 -8x2 =24

10 9x3=45-18=27 9x3= 9x5 -9x2 =27

11 10x3=30 Friendly!

12 10x4= easy =30 Let’s look at the results of Abacus play with 3s Do you see a pattern when you multiply by 3? To multiply by 3 by a number you just multiply the number by 5 and subtract 2x the number! 9x3=9x5-18=45-18=27 8x3=8x5-16=40-16=24 7x3=7x5-14=35-14=21 6x3=6x5-12=30-12=18 5x3=5x5-10=25-10=15 4x3=4x5-8=20-8=12 3x3=3x5-6=15-6=9 2x3=2x5-4=10-4=6 1x3=1x5-2 = 5-2=3 Click To Start Again Friendly Add/Subtract √ √ √ 83/ Mental math is easier if you use friendly addition/subtraction!


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