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
- 1.23² =
- 2.18² =
- 3.14² =
- 4.552 ÷ 8 =
- 5.Double 34 =
- 6.135 ÷ 3 =
- 7.216 ÷ 3 =
- 8.104 ÷ 8 =
- 9.A cricket match starts at 7:55 and the first innings ends at 9:45. How many minutes did the innings last?
- 10.60 children stand in rows of 7. How many full rows can they make?
- 11.Double 37 =
- 12.45 + 6 =
- 13.73 + ? = 100
- 14.Double 66 =
- 15.80 − 54 =
- 16.14 × 8 =
- 17.Double 44 =
- 18.1008 − 995 =
- 19.5 + 7 =
- 20.66 × 4 =
- 21.Double 26 =
- 22.174 ÷ 3 =
- 23.Best estimate of 138 + 319? (a) 200 (b) 600 (c) 400
- 24.32 − 19 =
- 25.9 + ? = 10
- 26.80 − 35 =
- 27.92 − 21 =
- 28.You start your homework at 5:45 and finish at 6:45. How many minutes did you work?
- 29.1014 − 997 =
- 30.128 ÷ 4 =
- 31.You buy a notebook for ₹18 and pay with a ₹100 note. How much change do you get, in rupees?
- 32.125 laddoos are packed in boxes of 9. How many laddoos are left over?
- 33.33 − 9 =
- 34.108 ÷ 4 =
- 35.19 + 19 =
- 36.42 × 4 =
- 37.8 + 10 =
- 38.21 + 20 =
- 39.45 ÷ 3 =
- 40.You buy a bag of mangoes for ₹18 and pay with a ₹100 note. How much change do you get, in rupees?
Answer key
- 529
- 324
- 196
- 69
- 68
- 45
- 72
- 13
- 110
- 8
- 74
- 51
- 27
- 132
- 26
- 112
- 88
- 13
- 12
- 264
- 52
- 58
- 400
- 13
- 1
- 45
- 71
- 60
- 17
- 32
- 82
- 8
- 24
- 27
- 38
- 168
- 18
- 41
- 15
- 82
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths