Mental Maths Questions Worksheet for Class 5
How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.
NameDateTime takenScore ___ / 40
- 1.47 × 9 =
- 2.324 ÷ 4 =
- 3.103 − 85 =
- 4.28² =
- 5.What is the remainder when 42 is divided by 4?
- 6.Half of 168 =
- 7.69 + 74 =
- 8.256 ÷ 4 =
- 9.232 ÷ 8 =
- 10.23 laddoos are packed in boxes of 3. How many laddoos are left over?
- 11.594 ÷ 9 =
- 12.22 × 8 =
- 13.29 + 41 =
- 14.Best estimate of 61 × 16? (a) 12000 (b) 120 (c) 1200
- 15.85 + 7 =
- 16.9 + ? = 10
- 17.48 + 83 =
- 18.Double 81 =
- 19.You buy a water bottle for ₹45 and pay with a ₹100 note. How much change do you get, in rupees?
- 20.Double 82 =
- 21.211 − 197 =
- 22.84 + 64 =
- 23.What is the remainder when 82 is divided by 7?
- 24.26 × 4 =
- 25.A cricket match starts at 8:20 and the first innings ends at 8:50. How many minutes did the innings last?
- 26.10% of ₹180 =
- 27.9 + 7 =
- 28.60 × 4 =
- 29.49 + 7 =
- 30.22² =
- 31.78 + 8 =
- 32.37 × 8 =
- 33.12 + 11 =
- 34.33 − 19 =
- 35.43 × 4 =
- 36.8 + ? = 10
- 37.Best estimate of 59 × 84? (a) 480 (b) 48000 (c) 4800
- 38.25 + 24 =
- 39.Best estimate of 37 × 52? (a) 2000 (b) 20000 (c) 200
- 40.14 + ? = 100
Answer key
- 423
- 81
- 18
- 784
- 2
- 84
- 143
- 64
- 29
- 2
- 66
- 176
- 70
- 1200
- 92
- 1
- 131
- 162
- 55
- 164
- 14
- 148
- 5
- 104
- 30
- 18
- 16
- 240
- 56
- 484
- 86
- 296
- 23
- 14
- 172
- 2
- 4800
- 49
- 2000
- 86
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths