FORM TIME NUMERACY Week beginning 30 17 Key

FORM TIME NUMERACY Week beginning 30. 17

Key Stage 3 The number 5 is spelt FIVE. FIV are in alphabetical order but the E is not. Can you find a number with its’ letters in alphabetical order? HINT: The number is less than 50.

KS 3 Solution The number 40, forty, is the only number we know of in English that it works for.

Key Stage 4 Use your reasoning a problem solving skills to find the mystery number from the list below 18 • • • 86 120 42 46 64 80 8 22 83 The number has two digits Both digits are even The digit in the tens column is greater than the digit in the unit column The unit digit is not in the three times table The tens digit is not double the unit digit The sum of the two digits is a multiple of five

KS 4 Solution Use your reasoning a problem solving skills to find the mystery number from the list below: 18 • • • 86 120 42 46 64 80 8 22 83 Options are : 18 , 86, 42, 46, 64, 80, 22, 83 The number has two digits Both digits are even Options are : 86, 42, 46, 64, 80, 22 The digit in the tens column is greater than the digit in the unit columnare : 86, 42, 64, 80 Options The unit digit is not in the three times table Options are : 42, 64, 80 The tens digit is not double the unit digit. Options are : 86, 64, 80 The sum of the two digits is a multiple of five Options are : 8 + 6 = 14 so not multiple of 5 6 + 4 = 10 which IS A MULTIPLE OF 5 8 + 0 = 8 which is not a multiple of 5 ANSWER : 64