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
- 1.37 × 4 =
- 2.71 + 39 =
- 3.112 ÷ 8 =
- 4.9 + ? = 10
- 5.8 + ? = 10
- 6.207 − 192 =
- 7.Best estimate of 495 + 278? (a) 600 (b) 1000 (c) 800
- 8.A train leaves at 2:55 and reaches the next city at 4:00. How many minutes is the journey?
- 9.29² =
- 10.16 + ? = 100
- 11.342 ÷ 9 =
- 12.34 laddoos are packed in boxes of 3. How many laddoos are left over?
- 13.11² =
- 14.21² =
- 15.50% of ₹850 =
- 16.23 + 22 =
- 17.You buy a box of crayons for ₹246 and pay with a ₹500 note. How much change do you get, in rupees?
- 18.You buy a water bottle for ₹44 and a pen for ₹11. You pay with a ₹100 note. How much change do you get, in rupees?
- 19.92 × 4 =
- 20.14 + 16 =
- 21.21 + 48 =
- 22.Best estimate of 602 + 407? (a) 1000 (b) 1200 (c) 800
- 23.109 − 83 =
- 24.38 + 15 =
- 25.66 − 9 =
- 26.71 − 53 =
- 27.You buy a notebook for ₹181 and pay with a ₹500 note. How much change do you get, in rupees?
- 28.43 × 4 =
- 29.133 laddoos are packed in boxes of 9. How many laddoos are left over?
- 30.23 laddoos are packed in boxes of 4. How many laddoos are left over?
- 31.76 ÷ 4 =
- 32.11 + 13 =
- 33.27² =
- 34.Double 36 =
- 35.545 + 99 =
- 36.37 + 9 =
- 37.71 + 71 =
- 38.38 + 22 =
- 39.10% of ₹230 =
- 40.81 + ? = 100
Answer key
- 148
- 110
- 14
- 1
- 2
- 15
- 800
- 65
- 841
- 84
- 38
- 1
- 121
- 441
- 425
- 45
- 254
- 45
- 368
- 30
- 69
- 1000
- 26
- 53
- 57
- 18
- 319
- 172
- 7
- 3
- 19
- 24
- 729
- 72
- 644
- 46
- 142
- 60
- 23
- 19
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths