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
- 1.84 − 67 =
- 2.88 + 4 =
- 3.68 + 7 =
- 4.309 − 276 =
- 5.372 ÷ 4 =
- 6.204 ÷ 4 =
- 7.13² =
- 8.15 × 4 =
- 9.9 + 3 =
- 10.21² =
- 11.A train leaves at 3:55 and reaches the next city at 5:05. How many minutes is the journey?
- 12.Half of 46 =
- 13.192 ÷ 6 =
- 14.56 + 31 =
- 15.23 × 8 =
- 16.23 laddoos are packed in boxes of 3. How many laddoos are left over?
- 17.You buy a water bottle for ₹97 and pay with a ₹100 note. How much change do you get, in rupees?
- 18.32 + ? = 100
- 19.87 − 55 =
- 20.89 + 3 =
- 21.Best estimate of 96 × 30? (a) 30000 (b) 3000 (c) 300
- 22.319 − 286 =
- 23.5% of ₹300 =
- 24.50 × 4 =
- 25.12 + 11 =
- 26.41 − 19 =
- 27.68 − 41 =
- 28.You buy a bag of mangoes for ₹220 and pay with a ₹500 note. How much change do you get, in rupees?
- 29.9 + ? = 10
- 30.91 × 8 =
- 31.You buy a pencil box for ₹11 and pay with a ₹100 note. How much change do you get, in rupees?
- 32.19² =
- 33.89 laddoos are packed in boxes of 7. How many laddoos are left over?
- 34.93 ÷ 3 =
- 35.53 × 4 =
- 36.69 + 6 =
- 37.58 − 28 =
- 38.810 − 99 =
- 39.A cricket match starts at 2:55 and the first innings ends at 5:20. How many minutes did the innings last?
- 40.589 + 99 =
Answer key
- 17
- 92
- 75
- 33
- 93
- 51
- 169
- 60
- 12
- 441
- 70
- 23
- 32
- 87
- 184
- 2
- 3
- 68
- 32
- 92
- 3000
- 33
- 15
- 200
- 23
- 22
- 27
- 280
- 1
- 728
- 89
- 361
- 5
- 31
- 212
- 75
- 30
- 711
- 145
- 688
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths