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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 1x5=5 1x10=10 2x5=102x10=20 3x5=153x10=30 4x5=204x10=40 5x5=255x10=50 6x5=306x10=60 10x10=100 8x5=40 7x5=35 10x5=50 8x10=80 7x10=70 9x10=909x5=45

3 Let’s look at the results of Abacus play with 10s and 5s. Do you see a pattern when you multiply by 10 and by 5? 1x5=5 1x10=10 2x5=10 2x10=20 3x10=30 4x5=20 4x10=40 5x5=25 5x10=50 6x5=30 6x10=60 10x10=100 8x5=40 7x5=35 10x5=50 8x10=80 7x10=70 9x10=90 9x5=45 3x5=15 Multiply by 10 is easy! To multiply by 5 you just multiply by 10 and cut in half! My Problem! My Way! My Way! Think!

4 10 x 4 = 5 x 4 = 10 x 2 = 5 x 2 = 10 x 3 = 5 x 3 = 10 x 5 = 5 x 5 = 10 x 6 = 5 x 6 = 10 x 7 = 5 x 7 = 10 x 9 = 5 x 9 = 10 x 8 = 5 x 8 = 40 20 30 90 50 60 70 45 80 10 25 20 15 40 30 35 MathOnMonday© (March 2000) Back To Start!


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