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
- 1.44 × 4 =
- 2.You buy a pencil box for ₹14 and a pen for ₹20. You pay with a ₹100 note. How much change do you get, in rupees?
- 3.83 − 68 =
- 4.79 + 9 =
- 5.76 children stand in rows of 9. How many full rows can they make?
- 6.Half of 50 =
- 7.50 + 23 =
- 8.Best estimate of 635 + 769? (a) 1600 (b) 1200 (c) 1400
- 9.92 − 73 =
- 10.32 laddoos are packed in boxes of 5. How many laddoos are left over?
- 11.Best estimate of 265 + 413? (a) 500 (b) 700 (c) 900
- 12.25 + 69 =
- 13.A train leaves at 2:05 and reaches the next city at 4:30. How many minutes is the journey?
- 14.25% of ₹710 =
- 15.10% of ₹80 =
- 16.71 + 29 =
- 17.78 + 9 =
- 18.79 − 39 =
- 19.36 × 4 =
- 20.171 ÷ 9 =
- 21.44 children stand in rows of 5. How many full rows can they make?
- 22.7 + ? = 10
- 23.68 + 3 =
- 24.127 laddoos are packed in boxes of 8. How many laddoos are left over?
- 25.60 ÷ 4 =
- 26.56 + ? = 100
- 27.You start your homework at 7:35 and finish at 10:10. How many minutes did you work?
- 28.124 ÷ 4 =
- 29.Double 51 =
- 30.77 + 5 =
- 31.664 ÷ 8 =
- 32.497 ÷ 7 =
- 33.59 + 41 =
- 34.26² =
- 35.240 ÷ 4 =
- 36.25 + 26 =
- 37.30 × 8 =
- 38.36 × 8 =
- 39.93 × 4 =
- 40.68 + 9 =
Answer key
- 176
- 66
- 15
- 88
- 8
- 25
- 73
- 1400
- 19
- 2
- 700
- 94
- 145
- 177.5
- 8
- 100
- 87
- 40
- 144
- 19
- 8
- 3
- 71
- 7
- 15
- 44
- 155
- 31
- 102
- 82
- 83
- 71
- 100
- 676
- 60
- 51
- 240
- 288
- 372
- 77
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths