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
- 1.891 ÷ 9 =
- 2.15² =
- 3.39 ÷ 3 =
- 4.148 ÷ 4 =
- 5.Best estimate of 40 × 54? (a) 20000 (b) 2000 (c) 200
- 6.805 − 99 =
- 7.306 − 284 =
- 8.79 children stand in rows of 7. How many full rows can they make?
- 9.27 × 4 =
- 10.17 + 18 =
- 11.364 ÷ 4 =
- 12.6 + 5 =
- 13.25% of ₹220 =
- 14.71 × 4 =
- 15.Half of 64 =
- 16.509 − 481 =
- 17.110 − 76 =
- 18.52 − 27 =
- 19.Best estimate of 14 × 42? (a) 40 (b) 4000 (c) 400
- 20.You buy a cricket ball for ₹24 and a pen for ₹13. You pay with a ₹100 note. How much change do you get, in rupees?
- 21.53 × 7 =
- 22.40 × 8 =
- 23.16² =
- 24.503 − 495 =
- 25.26 + 25 =
- 26.56 × 8 =
- 27.132 ÷ 4 =
- 28.You buy a water bottle for ₹389 and pay with a ₹500 note. How much change do you get, in rupees?
- 29.54 − 14 =
- 30.47 × 4 =
- 31.16 + 5 =
- 32.21 + 22 =
- 33.You buy a bag of mangoes for ₹93 and pay with a ₹100 note. How much change do you get, in rupees?
- 34.Half of 110 =
- 35.Double 76 =
- 36.A film starts at 1:10 and ends at 4:15. How many minutes long is the film?
- 37.Double 72 =
- 38.53 − 36 =
- 39.Half of 86 =
- 40.Best estimate of 56 × 62? (a) 360 (b) 3600 (c) 36000
Answer key
- 99
- 225
- 13
- 37
- 2000
- 706
- 22
- 11
- 108
- 35
- 91
- 11
- 55
- 284
- 32
- 28
- 34
- 25
- 400
- 63
- 371
- 320
- 256
- 8
- 51
- 448
- 33
- 111
- 40
- 188
- 21
- 43
- 7
- 55
- 152
- 185
- 144
- 17
- 43
- 3600
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths