Speed Math for Kids Achieve Their Full Potential

Chapter 7 MULTIPLYING LOWER NUMBER You may have noticed that our method of multiplication doesn’t seem to work ...

method work with a little ingenuity. Actually, these strategies will develop your ability to think late ...

Try these: a) 8 × 5 = b) 4 × 5 = c) 2 × 5 = d) 6 × 5 = The answers are: a) 40 b) 20 c) 10 d) 30 ...

number to multiply 6 times 4 because we saw that 10 wasn’t suitable. Let’s try using 9 as our reference ...

Try using the reference numbers 9 and 11 to multiply 7 by 8. Let’s try 9 first. The numbers are below 9 so ...

is always fun to play and experiment with the methods. Try multiplying 8 times 8 and 9 times 9 using 11 ...

Chapter 8 MULTIPLICATION BY 11 Everyone knows it is easy to multiply by 11. If you want to multiply 4 ...

Multiplying larger numbers by 11 There is a very simple way to multiply any number by 11. Let’s take the ...

multiply by 11 you can carry any number up to 9. This method is easy and fun. A simple check Here is a ...

instance, if you want to multiply 16 by 22, it is easy if you see 22 as 2 × 11. Then you multiply ...

Chapter 9 MULTIPLYING DECIMALS What are decimals? All numbers are made up of digits: 0, 1, 2, 3, 4, 5, 6, 7, 8 ...

Our problem was 1.2 × 1.4, but we have calculated 12 × 14, so our work isn’t finished yet. We have to ...

How did you go? The answers are: a) 1.44 b) 1.96 c) 1.68 d) 93.12 e) 9.216 f) 7.5 What if we had to multiply 0.13 ...

There is no difference between 8 and 8.0. The first number equals 8; the second number equals 8 too, but it ...

It is easy to add 948,000 and 640. 948,000 + 640 = 948,640 We now have to adjust our answer because we were ...

Chapter 10 MULTIPLICATION USING TWO REFERENCE NUMBERS The general rule for using a reference number for multipl ...

Now we multiply 29 by the main reference number, 10, to get 290. Then we multiply the numbers in the top t ...

the circles. Now we multiply the number above the 12 (2) by the multiplication factor, 12. 2 × 12 = 24 Draw ...

74 × 10 = 740 1 × 7 = 7 740 + 7 = 747 Easy. Now let’s use 10 and 80 as reference numbers. There ...

1 × 4 = 4 680 + 4 = 684 Answer The base number is always 10 when you multiply by 9. Let’s try anot ...