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.What is the remainder when 68 is divided by 6?
- 2.28 + 3 =
- 3.78 − 31 =
- 4.42 + 68 =
- 5.41 + 9 =
- 6.59 − 39 =
- 7.66 − 19 =
- 8.37 × 4 =
- 9.8 + 7 =
- 10.22 children stand in rows of 3. How many full rows can they make?
- 11.73 laddoos are packed in boxes of 6. How many laddoos are left over?
- 12.67 + ? = 100
- 13.75 + ? = 100
- 14.26 + 69 =
- 15.18 + 20 =
- 16.You buy a bag of mangoes for ₹57 and pay with a ₹100 note. How much change do you get, in rupees?
- 17.3 + ? = 10
- 18.Double 79 =
- 19.31 + 9 =
- 20.99 − 18 =
- 21.327 − 286 =
- 22.A train leaves at 7:30 and reaches the next city at 10:35. How many minutes is the journey?
- 23.5% of ₹360 =
- 24.76 − 28 =
- 25.A cricket match starts at 1:05 and the first innings ends at 2:40. How many minutes did the innings last?
- 26.307 − 276 =
- 27.33 + 9 =
- 28.19 + 18 =
- 29.7 + 8 =
- 30.Double 64 =
- 31.Best estimate of 344 + 123? (a) 600 (b) 200 (c) 400
- 32.8 + 9 =
- 33.You start your homework at 1:05 and finish at 2:15. How many minutes did you work?
- 34.22² =
- 35.A cricket match starts at 2:10 and the first innings ends at 5:10. How many minutes did the innings last?
- 36.9 + 11 =
- 37.47 + 7 =
- 38.215 − 175 =
- 39.50% of ₹710 =
- 40.518 ÷ 7 =
Answer key
- 2
- 31
- 47
- 110
- 50
- 20
- 47
- 148
- 15
- 7
- 1
- 33
- 25
- 95
- 38
- 43
- 7
- 158
- 40
- 81
- 41
- 185
- 18
- 48
- 95
- 31
- 42
- 37
- 15
- 128
- 400
- 17
- 70
- 484
- 180
- 20
- 54
- 40
- 355
- 74
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths