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Transcript
TERM 5 - Tonga Round decimals with two decimal places to the nearest whole number and to one decimal place. EXAMPLES Children should be able to answer rapidly 243.43 (243.4) [243] X2 ÷2 X3 ÷3 X4 ÷4 X5 ÷5 X6 ÷6 X7 ÷7 X8 ÷8 X9 ÷9 x10 ÷ 10 Prime numbers - 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41 x11 ÷ 11 Square numbers - 1 x 1 = 1, 2 x 2 = 4, 3 x 3 = 9, 4 x 4 = 16, 5 x 5 = x12 ÷ 12 392.78 (392.8) [393] 126 ÷ 2 Partition numbers to multiply and divide mentally 100 ÷ 2 = 50 20 ÷ 2 = 10 6÷2=3 Recall all multiplication and division facts and use place value 50 + 10 + 3 = 63 Understand that 6 x 7 = 42 0.6 x 7 = 4.2 60 x 70 = 4200 For example; Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80 (Recognising the pattern to these numbers ) Find common multiples and factors Recall prime numbers, square numbers X tables ÷ facts For example; Factors of 36 are (1 and 36), (2 and 18), (3 and 12), (4 and 9), (6 and 6) or the set 1, 2, 3, 4, 6, 9, 12, 18, 36 25, 6 x 6 = 36, 7 x 7 = 49, 8 x 8 = 64, 9 x 9 = 81