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
- 1.25% of ₹840 =
- 2.Half of 92 =
- 3.17 × 8 =
- 4.15 × 3 =
- 5.432 ÷ 8 =
- 6.A cricket match starts at 5:45 and the first innings ends at 6:25. How many minutes did the innings last?
- 7.19 + 21 =
- 8.Half of 40 =
- 9.39 + 16 =
- 10.1020 − 997 =
- 11.154 ÷ 7 =
- 12.533 + 99 =
- 13.312 ÷ 8 =
- 14.Best estimate of 555 + 730? (a) 1100 (b) 1300 (c) 1500
- 15.19 × 3 =
- 16.261 ÷ 9 =
- 17.37 + 6 =
- 18.52 ÷ 4 =
- 19.31 laddoos are packed in boxes of 4. How many laddoos are left over?
- 20.You buy a water bottle for ₹53 and pay with a ₹100 note. How much change do you get, in rupees?
- 21.10% of ₹850 =
- 22.1022 − 984 =
- 23.Double 87 =
- 24.36 + ? = 100
- 25.67 − 47 =
- 26.56 − 9 =
- 27.4 + ? = 10
- 28.249 ÷ 3 =
- 29.220 − 184 =
- 30.21 + 23 =
- 31.You start your homework at 3:20 and finish at 5:10. How many minutes did you work?
- 32.26 + 27 =
- 33.1028 − 982 =
- 34.672 ÷ 7 =
- 35.1027 − 987 =
- 36.A train leaves at 1:35 and reaches the next city at 3:40. How many minutes is the journey?
- 37.You buy a kite for ₹27 and pay with a ₹100 note. How much change do you get, in rupees?
- 38.61 − 25 =
- 39.16² =
- 40.You buy a box of crayons for ₹23 and a pen for ₹38. You pay with a ₹100 note. How much change do you get, in rupees?
Answer key
- 210
- 46
- 136
- 45
- 54
- 40
- 40
- 20
- 55
- 23
- 22
- 632
- 39
- 1300
- 57
- 29
- 43
- 13
- 3
- 47
- 85
- 38
- 174
- 64
- 20
- 47
- 6
- 83
- 36
- 44
- 110
- 53
- 46
- 96
- 40
- 125
- 73
- 36
- 256
- 39
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths