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
- 1.65 × 4 =
- 2.57 + ? = 100
- 3.32 + 29 =
- 4.64 + 72 =
- 5.31 + 65 =
- 6.526 − 485 =
- 7.8 + 9 =
- 8.66 + 29 =
- 9.75 × 4 =
- 10.You buy a box of crayons for ₹350 and pay with a ₹500 note. How much change do you get, in rupees?
- 11.You start your homework at 3:10 and finish at 5:35. How many minutes did you work?
- 12.3 + ? = 10
- 13.72 − 34 =
- 14.595 ÷ 7 =
- 15.A train leaves at 5:25 and reaches the next city at 6:25. How many minutes is the journey?
- 16.18 + 17 =
- 17.602 ÷ 7 =
- 18.98 − 78 =
- 19.55 + ? = 100
- 20.18² =
- 21.23 laddoos are packed in boxes of 4. How many laddoos are left over?
- 22.Best estimate of 76 × 17? (a) 1600 (b) 160 (c) 16000
- 23.114 children stand in rows of 8. How many full rows can they make?
- 24.Best estimate of 387 + 865? (a) 1100 (b) 1300 (c) 1500
- 25.248 ÷ 8 =
- 26.26 × 3 =
- 27.You buy a kite for ₹95 and pay with a ₹100 note. How much change do you get, in rupees?
- 28.31 laddoos are packed in boxes of 6. How many laddoos are left over?
- 29.88 laddoos are packed in boxes of 6. How many laddoos are left over?
- 30.176 ÷ 4 =
- 31.59 × 4 =
- 32.Double 89 =
- 33.24 + 75 =
- 34.4 + ? = 10
- 35.87 − 70 =
- 36.7 + 5 =
- 37.53 − 17 =
- 38.Double 52 =
- 39.10 + 9 =
- 40.144 ÷ 4 =
Answer key
- 260
- 43
- 61
- 136
- 96
- 41
- 17
- 95
- 300
- 150
- 145
- 7
- 38
- 85
- 60
- 35
- 86
- 20
- 45
- 324
- 3
- 1600
- 14
- 1300
- 31
- 78
- 5
- 1
- 4
- 44
- 236
- 178
- 99
- 6
- 17
- 12
- 36
- 104
- 19
- 36
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths