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
- 1.46 + 83 =
- 2.16 + 9 =
- 3.6 + 7 =
- 4.15² =
- 5.Double 28 =
- 6.14² =
- 7.35 + 24 =
- 8.93 − 21 =
- 9.38 × 8 =
- 10.42 + 16 =
- 11.86 + 31 =
- 12.10% of ₹330 =
- 13.248 ÷ 8 =
- 14.8 + ? = 10
- 15.16 × 8 =
- 16.390 + 99 =
- 17.78 + ? = 100
- 18.You buy a pencil box for ₹45 and a pen for ₹24. You pay with a ₹100 note. How much change do you get, in rupees?
- 19.10% of ₹840 =
- 20.Half of 122 =
- 21.22 children stand in rows of 4. How many full rows can they make?
- 22.Double 64 =
- 23.59 + 19 =
- 24.84 + 79 =
- 25.44 + 82 =
- 26.107 − 29 =
- 27.35 × 4 =
- 28.83 + 61 =
- 29.5% of ₹570 =
- 30.574 + 99 =
- 31.Best estimate of 166 + 130? (a) 300 (b) 500 (c) 100
- 32.Double 52 =
- 33.You start your homework at 3:10 and finish at 4:20. How many minutes did you work?
- 34.Best estimate of 20 × 46? (a) 1000 (b) 10000 (c) 100
- 35.144 ÷ 8 =
- 36.27² =
- 37.84 ÷ 6 =
- 38.71 + 19 =
- 39.You buy a bag of mangoes for ₹18 and a pen for ₹18. You pay with a ₹100 note. How much change do you get, in rupees?
- 40.49 children stand in rows of 5. How many full rows can they make?
Answer key
- 129
- 25
- 13
- 225
- 56
- 196
- 59
- 72
- 304
- 58
- 117
- 33
- 31
- 2
- 128
- 489
- 22
- 31
- 84
- 61
- 5
- 128
- 78
- 163
- 126
- 78
- 140
- 144
- 28.5
- 673
- 300
- 104
- 70
- 1000
- 18
- 729
- 14
- 90
- 64
- 9
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths