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
- 1.14² =
- 2.1020 − 983 =
- 3.You buy a water bottle for ₹45 and a pen for ₹45. You pay with a ₹100 note. How much change do you get, in rupees?
- 4.87 + 6 =
- 5.168 ÷ 4 =
- 6.24² =
- 7.79 × 4 =
- 8.14 × 8 =
- 9.11² =
- 10.You buy a pencil box for ₹69 and pay with a ₹100 note. How much change do you get, in rupees?
- 11.78 − 51 =
- 12.Half of 64 =
- 13.105 ÷ 5 =
- 14.49 + 3 =
- 15.Best estimate of 525 + 230? (a) 500 (b) 700 (c) 900
- 16.67 + 4 =
- 17.Best estimate of 32 × 59? (a) 18000 (b) 180 (c) 1800
- 18.What is the remainder when 37 is divided by 3?
- 19.59 + 7 =
- 20.120 ÷ 8 =
- 21.22 + ? = 100
- 22.68 + 72 =
- 23.164 ÷ 4 =
- 24.What is the remainder when 53 is divided by 5?
- 25.232 ÷ 8 =
- 26.Best estimate of 614 + 192? (a) 1000 (b) 800 (c) 600
- 27.16 × 8 =
- 28.13 × 7 =
- 29.44 + ? = 100
- 30.A train leaves at 3:40 and reaches the next city at 5:10. How many minutes is the journey?
- 31.58 + 4 =
- 32.36 × 8 =
- 33.68 + 28 =
- 34.162 ÷ 9 =
- 35.25 + 21 =
- 36.13² =
- 37.21² =
- 38.65 + 9 =
- 39.102 − 62 =
- 40.208 ÷ 8 =
Answer key
- 196
- 37
- 10
- 93
- 42
- 576
- 316
- 112
- 121
- 31
- 27
- 32
- 21
- 52
- 700
- 71
- 1800
- 1
- 66
- 15
- 78
- 140
- 41
- 3
- 29
- 800
- 128
- 91
- 56
- 90
- 62
- 288
- 96
- 18
- 46
- 169
- 441
- 74
- 40
- 26
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths