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Which number is divisible by 3? 24 300 18521 30 323 9191 Which number is divisible by 6? 24 302 18521 30 324 9191 The HCF of 100 (2 x 2 x 5 x 5) and 80 (2 x 2 x 2 x 2 x 5) is: 2 x 5 2 x 2 x 5 2 x 2 x 5 x 5 2 x 2 x 2 x 2 x 5 x 5 Find, 2 x 3 3 x 11 2 x 11 2 x 3 x 11 What is 150 ÷ 5 × 3? 9 10 30 90 What is 42 + 3 × 23? 27 40 152 392 Given 196 = 2 x 2 x 7 x 7, 2 7 14 27 4 6 8 12 23 = 2 and 3 3 and 4 5 and 6 7 and 8 √10 is between; √12 = √10 + √2 TRUE FALSE Multiplication: when the base is the same, add the indices. Complete: and the missing power is....... 54 x 5 = 59 72 x 76 = 7 37 x 34 = 3 e.g. 53 x 54 = 57 Division: when the base is the same, subtract the indices. Complete: and the missing power is....... 512 ÷ 5 = 55 79 ÷ 76 = 7 37 ÷ 34 = 3 e.g. 58 ÷ 53 = 55 Complete: Power to a Power: multiply the indices. and the missing power is....... (52) = 516 (75)4 = 7 (32)6 = 3 e.g. (53)4 = 512 Complete: Zero Index: any value, to the power of zero, equals 1. But... 5 + 90 = 120 = e.g. 70 = 1 30 = Factor Tree x 4 x 2 8 x 10 80 2 x 84 = 8 + 8 + 8 + 8 4 x 4 x 4 x 4 8 x 8 x 8 x 8 8 x 4 |