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:
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
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 √ 20-10+2 √ 30-10-2 35-10-4 40-20+4 45-20+2 √ 83/ Mental math is easier if you use friendly addition/subtraction!
Your consent to our cookies if you continue to use this website.