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
- 1.50% of ₹100 =
- 2.Best estimate of 62 × 39? (a) 24000 (b) 2400 (c) 240
- 3.You buy a notebook for ₹51 and pay with a ₹100 note. How much change do you get, in rupees?
- 4.22 + 24 =
- 5.43 + 54 =
- 6.Best estimate of 69 × 94? (a) 630 (b) 63000 (c) 6300
- 7.5% of ₹740 =
- 8.23 + 89 =
- 9.What is the remainder when 35 is divided by 3?
- 10.37 − 29 =
- 11.Best estimate of 27 × 73? (a) 2100 (b) 210 (c) 21000
- 12.21 + 29 =
- 13.39 + 7 =
- 14.14 + 15 =
- 15.9 + ? = 10
- 16.49 × 6 =
- 17.55 × 4 =
- 18.55 − 22 =
- 19.A train leaves at 1:20 and reaches the next city at 2:35. How many minutes is the journey?
- 20.12² =
- 21.59 − 19 =
- 22.112 ÷ 8 =
- 23.10% of ₹610 =
- 24.38 + 5 =
- 25.What is the remainder when 17 is divided by 3?
- 26.50% of ₹90 =
- 27.59 + 24 =
- 28.39 + 13 =
- 29.86 + ? = 100
- 30.25 + 26 =
- 31.You buy a box of crayons for ₹197 and pay with a ₹500 note. How much change do you get, in rupees?
- 32.27 + 87 =
- 33.86 + 27 =
- 34.67 × 4 =
- 35.Double 71 =
- 36.69 + 67 =
- 37.Half of 158 =
- 38.Best estimate of 749 + 264? (a) 1000 (b) 1200 (c) 800
- 39.Best estimate of 49 × 81? (a) 4000 (b) 40000 (c) 400
- 40.You buy a cricket ball for ₹492 and pay with a ₹500 note. How much change do you get, in rupees?
Answer key
- 50
- 2400
- 49
- 46
- 97
- 6300
- 37
- 112
- 2
- 8
- 2100
- 50
- 46
- 29
- 1
- 294
- 220
- 33
- 75
- 144
- 40
- 14
- 61
- 43
- 2
- 45
- 83
- 52
- 14
- 51
- 303
- 114
- 113
- 268
- 142
- 136
- 79
- 1000
- 4000
- 8
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths