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Go to Home Page Home > iMath Worksheets > Calculations: mental calculation strategies (x and divide)
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Choose the topic:
Mental arithmetic
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Example of questions

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

link to missing numbers

Age 9-11
Write in the missing numbers. Addition, multiplication and division of multiples of 10.

Missing numbers
link to worksheet

Age 9-10
Circle divisions which have an answer of, for example, 6 remainder 3

Remainders

Partition and use the distributive law

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link to multiply by 9 or 11

link to multiply by 9, 11, 19 or 21

link to multiply by 49, 51, 99 or 101

Link to worksheet

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

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example of multiply worksheet

Example of multiply and divide worksheet

Example of worksheet

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.

Divide
 Multiply and divide
Example of multiplication table

Age 10-11

Complete this multiplication table

Multiplication table 1
Multiplication table 2 more difficult
Example of product puzzle

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
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