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‘Cubed’ means multiplied by itself twice, just like finding the volume of a cube: vol = b x h x w.
Multiplication and Division 3 (Very Easy)
Multiplication and division make maths faster and more efficient. In 11 Plus Maths, they’re used to simplify problems, build patterns, and strengthen logical thinking.
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Fascinating Fact:
Multiplication is used in photography when pixels multiply across a screen, a ten megapixel camera means ten million little dots working together.
In 11 Plus Maths, multiplication and division help students understand large numbers, fractions, and ratios. These skills are key to problem solving, estimation, and mental arithmetic.
Key Terms
Pixel: The smallest part of a digital image, used to show how multiplication works in grids and screens.
Product: The result you get when numbers are multiplied together.
Inverse Operation: When two operations undo each other, such as multiplication and division.
What is the correct answer to the given calculation?
425 ÷ 5
85
75
65
55
To quickly divide by 5, first divide by 10 then double your answer:
425 ÷ 10 = 42.5, then 42.5 x 2 = 85
2 .
What is the correct answer to the given calculation?
1,080 ÷ 200
4.5
5.4
45
55
To divide by 200, first divide by 100 by moving the decimal point 2 places to the left, then divide by 2:
1,080 ÷ 100 = 10.8, then 10.8 ÷ 2 = 5.4
3 .
What is the correct answer to the given calculation?
12 x 40
240
360
480
600
To multiply by 40, first multiply by 4 then by 10:
12 x 4 = 48, then 48 x 10 = 480
4 .
What is the correct answer to the given calculation?
6 doubled then squared
12
36
48
144
'Double' means multiply by 2, and ‘squared’ means multiplied by itself:
6 x 2 = 12, then 12 x 12 = 144
5 .
What is the correct answer to the given calculation?
3 cubed
27
9
15
12
‘Cubed’ means multiplied by itself twice, just like finding the volume of a cube: vol = b x h x w.
3 x 3 x 3 = 27
6 .
What is the correct answer to the given calculation?
2,000 x 7.5
12,000
15,000
18,000
21,000
To multiply by 2,000, simply multiply by 2 then by 1,000 by adding 3 zeros:
2 x 7.5 = 15, then 15 x 1,000 = 15,000
7 .
What is the correct answer to the given calculation?
64 quartered
4
32
16
8
‘Quartered’ means divided by 4: 64 ÷ 4 = 16
8 .
What is the correct answer to the given calculation?
90 x 300
2,700,000
270,000
2,700
27,000
To multiply by 300, first multiply by three, then by 100:
90 x 3 = 270, then 270 x 100 = 27,000. Alternatively, if both numbers end with zeroes, these can be removed and added again at the end:
9 x 3 = 27. We removed 3 zeros, so we add them again to get 27,000
9 .
What is the correct answer to the given calculation?
57,000 ÷ 3,000
18
19
20
21
To quickly divide by 3,000, first divide by 1,000, then divide your answer by 3:
57,000 ÷ 1,000 = 57, then 57 ÷ 3 = 19
10 .
What is the correct answer to the given calculation?
93 x 101
9,193
9,293
9,393
9,483
A quick way to multiply by 101 is to first multiply by 100, then add the original number:
93 x 100 = 9,300, then 9,300 + 93 = 9,393
Author:
Frank Evans (Specialist 11 Plus Teacher and Tutor)