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Chapter 1. Whole Numbers. Addition. Remember addition sums must be in columns Remember subtraction sums must be in columns. 754 + 34 431 + 834 + 129 745 + 657 + 2 + 43. 645 – 321 7243 – 678 10 000 – 9874. Examples. Multiplication. Remember when multiplying by 10 add on 0
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Chapter 1 Whole Numbers
Addition • Remember addition sums must be in columns • Remember subtraction sums must be in columns
754 + 34 431 + 834 + 129 745 + 657 + 2 + 43 645 – 321 7243 – 678 10 000 – 9874 Examples
Multiplication • Remember when multiplying by 10 add on 0 • Remember when multiplying by 100 add on 00 • Remember when multiplying by 1000 add on 000
4378 × 4 46 × 20 4752 × 9 89 × 200 132 × 100 384 × 10 250 × 50 632 × 80 Examples
Put down a 0 and multiply by the 2nd digit Multiply by the 1st digit Add the two answers together Examples 23 × 34 23 × 73 356 × 65 276 × 45 5632 × 54 Long Multiplication
Division • Remember when dividing by 10 remove 0 or move decimal point back 1 time • Remember when dividing by 100 remove 00 or move decimal pointback 2 times
882 / 7 1470 / 6 2763 / 9 80 560 / 4 7590 / 30 7530 / 30 45 600 / 100 329 600 / 800 Examples
Brackets Order Divide Multiply Add Subtract Examples 4 + (7 – 3) 36 / (5 + 4) (9 + 5) * (9 – 5) (6 * 3 – 2) / (2* 2) 12 / (11 – 8) – 3 BODMAS