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Multiplication with tricks 6-9 (copy)

AB
6x06x0=0 Anything times zero is zero.
6x16x1=6 Anything times zero is itself.
6x26x2=12 Think of 2 sixes: 6+6=12 Another trick for sixes: 6x2--> Cut the two in half and put it back together! 1 2 ....6x2= 1 2
6x36x3=18 Think of 2 sixes and add one more six. 6+6=12, 12+6=18
6x46x4=24 Do the double double (fours trick). 6+6=12, 12+12=24. Another trick for sixes: 6x4--> Cut the four in half and put it back together! 2 4...6x4= 2 4
6x56x5=30 On a clock, when the minute hand hits the 6 it is 30... minutes after the hour. Or,count by fives: 5,10,15,20,25,30
6x66X6=36 Remember, 6x5=30, so just add 6. Another trick for sixes: 6x6--> Cut the six in half and put it back together! 3 6 ....6x6= 3 6
6x76x7=42 Count by sixes: 6,12,18,24,30,36,42 Or, count by 7s: 7,14,21,28,35,42
6x86x8=48 Count by 6s: 6,12,18,24,30,36,42,48 Another trick for sixes: 6x8--> Cut the six in half and put it back together! 4 8 ....6x8= 4 8
6x96x9=54 Nines trick: ||||/ .||||
6x106x10=60 Anything times ten has a zero at the end.
6x116x11=66 Elevens trick: "Twin" the number.
6x126x12=72 Think: 6x11=66, then add 6 more--> 72. Or, write it out top to bottom and multiply: 6 x 12 = 72
7x07x0=0 Anything times zero is zero
7x17x1=7 Anything times 1 is itself
7x27x2=14 Think of 2 sevens: 7+7=14
7x37x3=21 Think of adding 2 sevens and then add one more seven. 7 + 7=14, 14+7=21
7x44x7=28 Do the double double with the seven. 7+7=14, 14+14=28
7x57x5=35 On a clock, when the minute hand hits the 7 it is 35... minutes after the hour. Or,count by fives: 5,10,15,20,25,30,35
7x67x6=42 Count by sixes: 6,12,18,24,30,36,42 Or, count by 7s: 7,14,21,28,35,42
7x87x8=56 "78, 56, hike!"
7x97x9=63 ||||/ \.||| (6 tens, seventh finger bent, 3 ones)
7x107x10=70 Any time you multiply by 10, add a zero to the end.
7x117x11=77 Elevens trick: "Twin"the number
7x127x12=84 Think: 7x11=77, then add 7 more--> 84. Or, write it out top to bottom and multiply: 7 x 12 = 84
8x08x0=0 Anything times zero is zero.
8x18x1=8 Anything times one is itself
8x28x2=16 Think of 2 eights: 8+8=16
8x38x3=24 Think of adding 2 eights and then add another eight. 8 + 8=16,16+8=24
8x48x4=32 4s trick: Do the double double with the eight. 8+8=16, 16+16=32
8x58x5=40 On a clock, when the minute hand hits the 8 it is 40... minutes after the hour. Or,count by fives: 5,10,15,20,25,30,35,40
8x68x6=48 Count by 6s: 6,12,18,24,30,36,42,48 Another trick for sixes: 6x8--> Cut the six in half and put it back together! 4 8 ....6x8= 4 8
8x78x7=56 "78, 56, hike!"
8x88x8=64 8 and 8 were playing Nintendo 64
8x98x9=72 ||||/ \|.|| (7 tens, eighth finger bent, 2 ones)
8x108x10=80 Anything times ten, add a zero to the end
8x118x11=88 Anything times 11, clone it.
8x128x12=96 Think: 8x11=88, then add 8 more. Or, multiply with regrouping, top to bottom: 12 x 8=96
9x09x0=0 Anything times zero is zero.
9x19x1=9 Anything times ones equals itself.
Nines trickPut thumbs together. Start counting from left pinky, and stop when you get to the number you are multiplying by nine. Bend that finger. Numbers to the left of the bent finger are tens, and the numbers to the right of the bent finger are ones. This is a picture of two hands side by side: ||||/ \|||| Here is another picture, but the period represents a bent finger for 9x3 ||.|/ \||||
9x29x2=18 |.||/ \|||| (one ten, second finger bent, eight ones)
9x39x3=27 ||.|/ \|||| (2 tens, third finger bent, 7 ones)
9x49x4=36 |||./ \|||| (3 tens, fourth finger bent, 6 ones)
9x59x5=45 ||||. \|||| (4 tens, fifth finger bent, 5 ones)
9x69x6=54 ||||/ .|||| (5 tens, sixth finger bent, 4 ones)
9x79x7=63 ||||/ \.||| (6 tens, seventh finger bent, 3 ones)
9x89x8=72 ||||/ \|.|| (7 tens, eighth finger bent, 2 ones)
9x99x9=81 ||||/ \||.| (8 tens, ninth finger bent, 1 one)
9x109x10=90 Anything times ten, add a zero to the end
9x119x11=99 Elevens trick: Clone the 9
9x129x12=108 Think: 9 x 11 = 99, then add 9. 99+9=108. Or write them top to bottom and multiply: 12x9=108


Third Grade Teacher
Southern California, CA

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