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
- 1.15² =
- 2.A cricket match starts at 3:55 and the first innings ends at 5:35. How many minutes did the innings last?
- 3.42 + 37 =
- 4.23² =
- 5.16² =
- 6.228 ÷ 4 =
- 7.365 ÷ 5 =
- 8.8 + 8 =
- 9.25% of ₹200 =
- 10.28 × 8 =
- 11.1017 − 977 =
- 12.280 ÷ 8 =
- 13.A train leaves at 4:10 and reaches the next city at 4:55. How many minutes is the journey?
- 14.792 − 99 =
- 15.61 − 29 =
- 16.55 − 44 =
- 17.113 − 87 =
- 18.68 + 3 =
- 19.Half of 58 =
- 20.73 children stand in rows of 9. How many full rows can they make?
- 21.29 laddoos are packed in boxes of 6. How many laddoos are left over?
- 22.192 ÷ 4 =
- 23.11² =
- 24.337 − 99 =
- 25.Half of 116 =
- 26.44 − 19 =
- 27.63 − 9 =
- 28.You start your homework at 4:35 and finish at 7:55. How many minutes did you work?
- 29.5 + 9 =
- 30.A cricket match starts at 5:10 and the first innings ends at 7:00. How many minutes did the innings last?
- 31.Half of 50 =
- 32.36 + 87 =
- 33.94 − 24 =
- 34.16 + 19 =
- 35.Best estimate of 531 + 169? (a) 700 (b) 500 (c) 900
- 36.Best estimate of 68 × 73? (a) 4900 (b) 49000 (c) 490
- 37.9 + 10 =
- 38.You buy a kite for ₹63 and pay with a ₹100 note. How much change do you get, in rupees?
- 39.68 − 55 =
- 40.506 − 488 =
Answer key
- 225
- 100
- 79
- 529
- 256
- 57
- 73
- 16
- 50
- 224
- 40
- 35
- 45
- 693
- 32
- 11
- 26
- 71
- 29
- 8
- 5
- 48
- 121
- 238
- 58
- 25
- 54
- 200
- 14
- 110
- 25
- 123
- 70
- 35
- 700
- 4900
- 19
- 37
- 13
- 18
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths