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
- 1.21² =
- 2.24 + 23 =
- 3.77 + 6 =
- 4.You buy a box of crayons for ₹25 and a pen for ₹15. You pay with a ₹100 note. How much change do you get, in rupees?
- 5.A cricket match starts at 5:35 and the first innings ends at 8:20. How many minutes did the innings last?
- 6.16 + 17 =
- 7.27 + ? = 100
- 8.72 + 29 =
- 9.You buy a kite for ₹70 and pay with a ₹100 note. How much change do you get, in rupees?
- 10.Best estimate of 44 × 40? (a) 16000 (b) 160 (c) 1600
- 11.71 + 19 =
- 12.22 + 24 =
- 13.192 ÷ 4 =
- 14.225 − 99 =
- 15.7 + ? = 10
- 16.10% of ₹880 =
- 17.Double 48 =
- 18.22 + 23 =
- 19.59 − 15 =
- 20.14 × 9 =
- 21.25 × 8 =
- 22.72 + 38 =
- 23.You buy a box of crayons for ₹286 and pay with a ₹500 note. How much change do you get, in rupees?
- 24.26 + 6 =
- 25.Half of 44 =
- 26.79 − 67 =
- 27.128 ÷ 8 =
- 28.526 − 482 =
- 29.38 + 4 =
- 30.57 − 26 =
- 31.36 + 8 =
- 32.98 × 9 =
- 33.8 + 7 =
- 34.72 − 57 =
- 35.You buy a cricket ball for ₹29 and a pen for ₹39. You pay with a ₹100 note. How much change do you get, in rupees?
- 36.Best estimate of 64 × 19? (a) 12000 (b) 1200 (c) 120
- 37.28 + 26 =
- 38.59 × 4 =
- 39.Half of 166 =
- 40.14² =
Answer key
- 441
- 47
- 83
- 60
- 165
- 33
- 73
- 101
- 30
- 1600
- 90
- 46
- 48
- 126
- 3
- 88
- 96
- 45
- 44
- 126
- 200
- 110
- 214
- 32
- 22
- 12
- 16
- 44
- 42
- 31
- 44
- 882
- 15
- 15
- 32
- 1200
- 54
- 236
- 83
- 196
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths