Home > iMath Worksheets > Calculations: mental calculation strategies (x and divide)
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 Mental arithmetic Four mental arithmetic 'tests' on one page. Each 'test' comprises ten questions on addition, subtraction, multiplication, division, place value, sequences, fractions, measures, time and money. Test 1 Test 2 : slightly more difficult Four mental arithmetic 'tests' on one page. Each 'test' comprises ten questions on multiplication and division. Multiplication and division

 Missing numbers and remainders Age 9-11 Write in the missing numbers. Addition, multiplication and division of multiples of 10. Missing numbers Age 9-10 Circle divisions which have an answer of, for example, 6 remainder 3 Remainders

 Partition and use the distributive law Age 8-9 Multiply a number by 9 or 11 by multiplying by 10 and adding or subtracting the number. Multiply by 9 or 11 Multiply a two-digit number by single-digit number, multiplying the tens first. Multiply Age 9-10 Multiply a number by 9, 11, 19 or 21 by multiplying by 20 and adding or subtracting the number. Multiply by 9, 11, 19 or 21 Multiply a two-digit number by single-digit number, multiplying the tens first. Multiply Age 10-11 Multiply a number by 49, 51, 99 or 101 by multiplying by 50 or 100 and adding or subtracting the number. Multiply by 49, 51, 99 or 101 Multiply a two-digit number by single-digit number, multiplying the tens first. Multiply

 Multiply or divide mentally Age 9-10 Multiply or divide a two-digit multiple of 10 by a three-digit multiple of 100. Multiply Divide a four-digit multiple of 100 by 1000, 100 or 10 Divide Multiply and divide Age 10-11 Multiply a decimal fraction with one or two decimal places by 10 or 100. Multiply Divide a one- or two-digit whole number by 100 or 10. Age 10-11 Complete this multiplication table Multiplication table 1 Multiplication table 2 more difficult Age 10-11 Write a number in each circle so that the number in each square equals the product of the two numbers on either side of it. The first one is done for you. Product puzzle 1 numbers up to 12 Product puzzle 2 numbers up to 20