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.Double 23 =
- 2.46 laddoos are packed in boxes of 8. How many laddoos are left over?
- 3.122 − 80 =
- 4.19² =
- 5.26 × 8 =
- 6.17 + 19 =
- 7.31 + 62 =
- 8.14 + 16 =
- 9.230 − 197 =
- 10.27² =
- 11.126 ÷ 7 =
- 12.Best estimate of 345 + 771? (a) 1300 (b) 900 (c) 1100
- 13.109 − 75 =
- 14.220 ÷ 4 =
- 15.66 + 29 =
- 16.55 + 7 =
- 17.76 × 6 =
- 18.A film starts at 2:50 and ends at 3:40. How many minutes long is the film?
- 19.What is the remainder when 62 is divided by 4?
- 20.48 + 61 =
- 21.76 + 9 =
- 22.What is the remainder when 140 is divided by 9?
- 23.23 − 19 =
- 24.40 children stand in rows of 3. How many full rows can they make?
- 25.You buy a notebook for ₹38 and a pen for ₹27. You pay with a ₹100 note. How much change do you get, in rupees?
- 26.A cricket match starts at 6:50 and the first innings ends at 7:50. How many minutes did the innings last?
- 27.78 + 9 =
- 28.95 ÷ 5 =
- 29.89 + ? = 100
- 30.338 − 99 =
- 31.335 − 99 =
- 32.301 − 298 =
- 33.Best estimate of 24 × 56? (a) 12000 (b) 120 (c) 1200
- 34.15 × 4 =
- 35.47 + 86 =
- 36.27 + 29 =
- 37.312 ÷ 8 =
- 38.11² =
- 39.60 ÷ 4 =
- 40.29 − 19 =
Answer key
- 46
- 6
- 42
- 361
- 208
- 36
- 93
- 30
- 33
- 729
- 18
- 1100
- 34
- 55
- 95
- 62
- 456
- 50
- 2
- 109
- 85
- 5
- 4
- 13
- 35
- 60
- 87
- 19
- 11
- 239
- 236
- 3
- 1200
- 60
- 133
- 56
- 39
- 121
- 15
- 10
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths