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
- 1.1010 − 987 =
- 2.59 + 18 =
- 3.Best estimate of 125 + 651? (a) 1000 (b) 600 (c) 800
- 4.34 × 4 =
- 5.25% of ₹90 =
- 6.28 children stand in rows of 3. How many full rows can they make?
- 7.Best estimate of 296 + 842? (a) 900 (b) 1300 (c) 1100
- 8.13 × 8 =
- 9.37 + 7 =
- 10.76 ÷ 4 =
- 11.12 × 8 =
- 12.99 − 36 =
- 13.17 + 7 =
- 14.279 ÷ 9 =
- 15.A train leaves at 1:05 and reaches the next city at 2:50. How many minutes is the journey?
- 16.78 + 8 =
- 17.1029 − 990 =
- 18.You buy a kite for ₹262 and pay with a ₹500 note. How much change do you get, in rupees?
- 19.5% of ₹320 =
- 20.19 × 8 =
- 21.240 ÷ 4 =
- 22.Best estimate of 32 × 44? (a) 1200 (b) 12000 (c) 120
- 23.16 + 15 =
- 24.240 + 99 =
- 25.58 + ? = 100
- 26.30 × 8 =
- 27.28 + 27 =
- 28.29² =
- 29.40 + 56 =
- 30.55 + 67 =
- 31.48 × 3 =
- 32.25 + 26 =
- 33.53 children stand in rows of 8. How many full rows can they make?
- 34.74 − 19 =
- 35.38 laddoos are packed in boxes of 5. How many laddoos are left over?
- 36.423 ÷ 9 =
- 37.Double 59 =
- 38.104 ÷ 8 =
- 39.Best estimate of 37 × 62? (a) 2400 (b) 240 (c) 24000
- 40.219 − 195 =
Answer key
- 23
- 77
- 800
- 136
- 22.5
- 9
- 1100
- 104
- 44
- 19
- 96
- 63
- 24
- 31
- 105
- 86
- 39
- 238
- 16
- 152
- 60
- 1200
- 31
- 339
- 42
- 240
- 55
- 841
- 96
- 122
- 144
- 51
- 6
- 55
- 3
- 47
- 118
- 13
- 2400
- 24
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths