Speed Math for Kids Achieve Their Full Potential

Using factors expressed as division To multiply 48 × 96, we could use reference numbers of 50 and 100, ex ...

You can use any combination of reference numbers. The general rules are: 1 Make the main reference number an ...

Multiply 3 times 8 to get 24. Write 24 in a circle above the 3. Add 24 to 76 to get 100. Multiply ...

This is something to play with and experiment with. We just used the same formula three different wa ...

Here is the problem fully worked out. The above problem can be solved more easily by simply using a single ...

It is interesting and fun to try different strategies to find the easiest method. Test yourself Try these for you ...

Chapter 11 ADDITION Most of us find addition easier than subtraction. We will learn in this chapter ...

f) 65 + 7 = The answers are: a) 34 b) 55 c) 81 d) 64 e) 45 f) 72 You don’t have to add and subtract the way ...

Try these problems in your head: a) b) c) For a) you simply add 300 and subtract 3: 531 + 300 is 831, ...

their basic parts. How do you add 8 plus 5? You could add 5 plus 10 and subtract 2. Or you could add 8 ...

Your check could look like this: Note that this only works with addition. With all other ...

Chapter 12 SUBTRACTION Most of us find addition easier than subtraction. Subtraction, the way most peop ...

Subtract 100 to get 332. Add 13 (add 10 and then 3) to get 345. Easy. Test yourself Try these problems ...

It also works for subtracting numbers near the same tens value. Here’s another: Test yourself Try these for ...

Easy subtraction uses either of two carrying and borrowing methods. You should recognise one or even both ...

Note to parents and teachers This strategy is very important. If a student has mastered multiplica ...

Three from 9 is 6. Five from 9 is 4. Nine from 9 is 0. Four from 10 is 6. The answer is 3 ...

This answer is correct, so our calculation was correct. Here is the option I prefer, however. Call out the ...

Chapter 13 SIMPLE DIVISION When do you need to be able to divide? You need to be able to do short di ...

Or like this: We begin from the left-hand side of the number we are dividing. Three is the first digit ...