ffirs.indd

Addition 113 Here is an example: 1 2 3 4 5 6 7 8 9 0 4 1 7 3 5 2 1 8 6 5 We add the numbers to get our total of 143,835. Is our ...

114 Speed Math for Kids number combines with a digit in the second to equal 9. Your check could look like this: 1 2 3 4 5 0 6 7 ...

Addition 115 If the above fi gures were amounts of money with a decimal, it would make no diff erence. You can use this method t ...

= x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < &g ...

Subtraction 117 Th e easiest way to solve a problem is also the fastest, with the least chance of making a mistake. So, what is ...

118 Speed Math for Kids What is 284 minus 68? Let’s subtract 70 from 284 and add 2. 284 – 70 = 214 214 + 2 = 216 Th is is easily ...

Subtraction 119 The answers are: a) 48 b) 33 c) 127 d) 353 e) 466 f) 1,529 For a) you would subtract 40 and add 2. For b) you wo ...

120 Speed Math for Kids 32 132 – 88 = 12 12 + 32 = 44 Answer Th is technique works for any numbers above and below any hundreds ...

Subtraction 121 Test you rself Try these for yourself: a) 13 – 8 = b) 17 – 8 = c) 12 – 9 = d) 12 – 8 = e) 124 – 88 = f) 161 – 75 ...

122 Speed Math for Kids methods of carrying and borrowing. Use the method you are familiar with or that you fi nd easier. Subtra ...

Subtraction 123 Subtract 7 from 5. You can’t, so you borrow 1 from the tens column. Put a 1 in front of the 5 to make 15 and wri ...

124 Speed Math for Kids If a student has to learn the combinations of single-digit numbers that add to more than 10, there are a ...

Subtraction 125 Th ree from 9 is 6. One from 1 is 0. So we have our answer: 632. Now let’s try it from left to right. One from 1 ...

126 Speed Math for Kids Th ree from 9 is 6. Five from 9 is 4. Nine from 9 is 0. Four from 10 is 6. Th e answer is 36,406. You co ...

Subtraction 127 Th is is useful for calculating the numbers to write in the circles when you are using 100 or 1,000 as reference ...

128 Speed Math for Kids Here is the option I prefer, however. Call out the problem backward as an addition. Th is is probably ho ...

Subtraction 129 Note to parents and teachers The difference is not so much with students’ brains but with the methods they use. ...

= x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < &g ...

Simple Division 131 If you are watching a cricket match and a team has scored 32 runs in 8 overs, how many runs per over have th ...

132 Speed Math for Kids We could ask, what do we multiply by 4 to get an answer of 33, or as close to 33 as we can without going ...