KS1 Mental Maths Worksheet

Key Stage 1 · Years 1–2 · Ages 5–7

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Answer all 40 questions. Write your answer on the line next to each question. Try to answer as quickly as you can — these are mental maths questions, so no calculators!
Section A — Number Bonds & Counting (Q1–10)
1.What is 3 + 4?
2.What is 7 + 3?
3.What is 10 − 4?
4.What is 6 + 4?
5.Count on 3 from 12. Answer: ___
6.What number bonds make 10? 4 + ___
7.What is 8 + 2?
8.What is 10 − 7?
9.Write the next number: 15, 16, 17, ___
10.What is 5 + 5?
Section B — Addition & Subtraction within 20 (Q11–20)
11.What is 9 + 6?
12.What is 14 − 5?
13.What is 8 + 8?
14.What is 20 − 6?
15.What is 7 + 9?
16.What is 18 − 9?
17.What is 13 + 4?
18.What is 16 − 7?
19.___ + 6 = 15. What is ___?
20.What is 11 + 7?
Section C — Times Tables 2, 5 & 10 (Q21–30)
21.2 × 3 = ___
22.5 × 4 = ___
23.10 × 2 = ___
24.2 × 7 = ___
25.5 × 6 = ___
26.10 × 5 = ___
27.2 × 9 = ___
28.5 × 9 = ___
29.10 × 8 = ___
30.How many 2s in 14? ___
Section D — Counting, Ordering & Place Value (Q31–40)
31.Count back 5 from 20. Answer: ___
32.What is 1 more than 49?
33.What is 10 more than 35?
34.What is 10 less than 70?
35.Order smallest first: 45, 27, 63, 10 → ___
36.How many tens in 50?
37.What is double 9?
38.What is half of 16?
39.Count in 5s: 5, 10, 15, ___
40.Write twenty-three in digits: ___
Total Score
/ 40
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