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
- 1.86 − 53 =
- 2.25% of ₹850 =
- 3.A film starts at 2:05 and ends at 5:10. How many minutes long is the film?
- 4.Double 36 =
- 5.You buy a kite for ₹79 and pay with a ₹100 note. How much change do you get, in rupees?
- 6.21 × 3 =
- 7.43 laddoos are packed in boxes of 3. How many laddoos are left over?
- 8.63 × 3 =
- 9.89 + ? = 100
- 10.Best estimate of 38 × 14? (a) 4000 (b) 40 (c) 400
- 11.207 − 193 =
- 12.24² =
- 13.81 − 63 =
- 14.You buy a bag of mangoes for ₹78 and pay with a ₹100 note. How much change do you get, in rupees?
- 15.51 + 25 =
- 16.17 + 19 =
- 17.1011 − 991 =
- 18.68 children stand in rows of 9. How many full rows can they make?
- 19.Best estimate of 96 × 51? (a) 50000 (b) 500 (c) 5000
- 20.71 + 89 =
- 21.89 − 63 =
- 22.35 + 21 =
- 23.78 − 57 =
- 24.You buy a water bottle for ₹75 and pay with a ₹100 note. How much change do you get, in rupees?
- 25.297 ÷ 9 =
- 26.68 children stand in rows of 8. How many full rows can they make?
- 27.42 + 89 =
- 28.19² =
- 29.8 + ? = 10
- 30.39 + ? = 100
- 31.21² =
- 32.86 + 6 =
- 33.Best estimate of 69 × 66? (a) 49000 (b) 4900 (c) 490
- 34.60 + ? = 100
- 35.45 × 4 =
- 36.108 − 79 =
- 37.24 × 8 =
- 38.80 + 29 =
- 39.20 + ? = 100
- 40.5 + 8 =
Answer key
- 33
- 212.5
- 185
- 72
- 21
- 63
- 1
- 189
- 11
- 400
- 14
- 576
- 18
- 22
- 76
- 36
- 20
- 7
- 5000
- 160
- 26
- 56
- 21
- 25
- 33
- 8
- 131
- 361
- 2
- 61
- 441
- 92
- 4900
- 40
- 180
- 29
- 192
- 109
- 80
- 13
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths