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 ₹520 =
- 2.78 + 19 =
- 3.86 + 7 =
- 4.52 − 13 =
- 5.296 ÷ 8 =
- 6.42 × 4 =
- 7.Best estimate of 76 × 18? (a) 160 (b) 1600 (c) 16000
- 8.112 ÷ 4 =
- 9.Double 29 =
- 10.You buy a water bottle for ₹24 and pay with a ₹100 note. How much change do you get, in rupees?
- 11.69 × 3 =
- 12.48 × 4 =
- 13.16² =
- 14.76 ÷ 4 =
- 15.5% of ₹490 =
- 16.89 − 59 =
- 17.Best estimate of 240 + 312? (a) 700 (b) 300 (c) 500
- 18.86 children stand in rows of 9. How many full rows can they make?
- 19.Half of 188 =
- 20.65 × 6 =
- 21.684 − 99 =
- 22.5% of ₹210 =
- 23.10% of ₹330 =
- 24.69 × 8 =
- 25.You start your homework at 2:35 and finish at 4:00. How many minutes did you work?
- 26.14² =
- 27.266 ÷ 7 =
- 28.You buy a kite for ₹31 and a pen for ₹22. You pay with a ₹100 note. How much change do you get, in rupees?
- 29.Best estimate of 16 × 32? (a) 600 (b) 60 (c) 6000
- 30.83 − 71 =
- 31.26 + 25 =
- 32.105 − 29 =
- 33.5 + 7 =
- 34.19 × 8 =
- 35.62 + 19 =
- 36.21 + 22 =
- 37.You start your homework at 4:50 and finish at 7:25. How many minutes did you work?
- 38.You buy a storybook for ₹45 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
- 39.5% of ₹660 =
- 40.42 − 29 =
Answer key
- 260
- 97
- 93
- 39
- 37
- 168
- 1600
- 28
- 58
- 76
- 207
- 192
- 256
- 19
- 24.5
- 30
- 500
- 9
- 94
- 390
- 585
- 10.5
- 33
- 552
- 85
- 196
- 38
- 47
- 600
- 12
- 51
- 76
- 12
- 152
- 81
- 43
- 155
- 37
- 33
- 13
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths