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Mental Maths Test Year 4 Worksheets - Free Printable

Mental Maths Test Year 4 Worksheets

Educational worksheet: Mental Maths Test Year 4 Worksheets. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: Mental Maths Test Year 4 Worksheets
Let’s go through each question one by one and solve them carefully.

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1) Work out 14 + 5 + 6

First, add 14 + 5 = 19
Then, 19 + 6 = 25
Answer: 25

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2) How many sides does a pentagon have?

A pentagon is a shape with 5 straight sides.
Answer: 5

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3) What number is halfway between 12 and 20?

Find the difference: 20 - 12 = 8
Half of 8 is 4
Add 4 to 12 → 12 + 4 = 16
Or subtract 4 from 20 → 20 - 4 = 16
Answer: 16

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4) 20 – 4

Simple subtraction: 20 minus 4 is 16
Answer: 16

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5) Write down the number three hundred and seven

Three hundred = 300
Seven = 7
So, 300 + 7 = 307
Answer: 307

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6) Fill in the missing number 156 = 150 + ___

What do you add to 150 to get 156?
156 - 150 = 6
Answer: 6

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**7) What is the missing number in this sequence?
2, 5, 8, 11, 14, 17, ___**

Look at the pattern:
5 - 2 = 3
8 - 5 = 3
11 - 8 = 3
... so it’s adding 3 each time.
Last number is 17 → 17 + 3 = 20
Answer: 20

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8) 5 x 6

Multiplication: 5 times 6 is 30
Answer: 30

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**9) Which of these numbers is not even?
12, 28, 57, 32, 46, 70**

Even numbers end in 0, 2, 4, 6, or 8.
Check each:
12 → even
28 → even
57 → ends in 7 → odd!
32 → even
46 → even
70 → even
Answer: 57

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10) What is the value of the digit 3 in the number 735?

In 735:
- 7 is hundreds (700)
- 3 is tens → that means 30
- 5 is ones (5)
So the 3 stands for 30
Answer: 30

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11) I have £1. I spend 45p. How much do I have left?

£1 = 100 pence
100p - 45p = 55p
Answer: 55p

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12) What is the name of this shape?

The shape shown has 4 sides, with one pair of parallel sides — that’s a trapezium (or trapezoid).
It’s not a rectangle or square because only two sides are parallel.
Answer: Trapezium

*(Note: In some countries like the US, it’s called a trapezoid — but since this sheet uses UK spelling like “pentagon” and “pence”, we’ll use “trapezium”)*

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13) How many groups of 3 make 15?

This is division: 15 ÷ 3 = 5
You can also think: 3 + 3 + 3 + 3 + 3 = 15 → that’s 5 groups
Answer: 5

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14) The date is the 15th March. What will the date be in a week’s time?

A week = 7 days
15 + 7 = 22
Still in March (March has 31 days)
Answer: 22nd March

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15) What is double 43?

Double means multiply by 2:
43 × 2 = 86
Or break it: 40×2=80, 3×2=6 → 80+6=86
Answer: 86

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16) An apple costs 23p. How much do 3 apples cost?

23p × 3
Break it: 20×3 = 60, 3×3 = 9 → 60 + 9 = 69
Answer: 69p

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Final Answer:
1) 25
2) 5
3) 16
4) 16
5) 307
6) 6
7) 20
8) 30
9) 57
10) 30
11) 55p
12) Trapezium
13) 5
14) 22nd March
15) 86
16) 69p
Parent Tip: Review the logic above to help your child master the concept of printable math quiz.
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