Maths Tricks Practice Worksheet
The trick (Choose a trick): × 9 → finger trick; × 4 → double double; × 10, 100, 1000 → slide and add zeros. 37, 12345679 or 111… → magic patterns; reverse and subtract → 1089. Puzzles: find the rule, the total or the leftover days, then check your answer.
NameDateTime takenScore ___ / 40
- 1.474 × ? = 4740
- 2.Take 740. Reverse its digits and take the smaller number away from the bigger one. What do you get?
- 3.37 × 27 =
- 4.Magic square (every row, column and diagonal has the same total): 3 ? 5 | 8 6 4 | 7 2 9. What is the missing number?
- 5.Think of 3. Multiply it by 4, then add 4. What number do you end with?
- 6.In the 1089 trick, the subtraction gave a 3-digit number that starts with 1. What is that number?
- 7.9 × 9 = 8? — what is the missing digit?
- 8.I thought of a number, added 4 and then doubled it. I got 18. What was my number?
- 9.A piggy bank has 12 coins of ₹5 and 4 coins of ₹2. How many rupees are in it?
- 10.10 × 9 =
- 11.What comes next? 5, 14, 23, 32, ? (a) 50 (b) 32 (c) 42 (d) 41
- 12.If today is Saturday, what day will it be after 48 days? (a) Thursday (b) Saturday (c) Monday (d) Friday
- 13.89 × 100 =
- 14.Think of 5. Multiply it by 5, then add 1. What number do you end with?
- 15.Double 89 =
- 16.1 + 2 + 3 + … + 93 =
- 17.693 + 396 =
- 18.What comes next? 11, 17, 23, 29, ? (a) 36 (b) 35 (c) 29 (d) 41
- 19.What comes next? 3, 6, 12, 24, ? (a) 36 (b) 48 (c) 42 (d) 49
- 20.37 × 9 =
- 21.What comes next? 15, 19, 23, 27, ? (a) 35 (b) 27 (c) 32 (d) 31
- 22.Magic square (every row, column and diagonal has the same total): 10 11 6 | 5 ? 13 | 12 7 8. What is the missing number?
- 23.9 × 5 =
- 24.Double 29 =
- 25.Magic square (every row, column and diagonal has the same total): 6 5 10 | 11 7 3 | ? 9 8. What is the missing number?
- 26.9 × 6 = ?4 — what is the missing digit?
- 27.I thought of a number, multiplied it by 2 and added 8. I got 26. What was my number?
- 28.Think of 6. Multiply it by 4, then add 9. What number do you end with?
- 29.If today is Monday, what day was it 30 days ago? (a) Friday (b) Tuesday (c) Saturday (d) Sunday
- 30.42 × 4 =
- 31.26 × 4 =
- 32.Magic trick! Think of 17. Double it, add 14, halve it, then take away 17. What number do you get?
- 33.9 × 5 = ?5 — what is the missing digit?
- 34.1 + 2 + 3 + … + 49 =
- 35.Take 700. Reverse its digits and take the smaller number away from the bigger one. What do you get?
- 36.7 × 9 =
- 37.The 4th of a month is a Tuesday. What day is the 16th of the same month? (a) Saturday (b) Sunday (c) Wednesday (d) Monday
- 38.The 2nd of a month is a Friday. What day is the 22nd of the same month? (a) Friday (b) Wednesday (c) Sunday (d) Thursday
- 39.39 × 1000 =
- 40.37 × 1000 =
Answer key
- 10
- 693
- 999
- 10
- 16
- 198
- 1
- 5
- 68
- 90
- 41
- Friday
- 8900
- 26
- 178
- 4371
- 1089
- 35
- 48
- 333
- 31
- 9
- 45
- 58
- 4
- 5
- 9
- 33
- Saturday
- 168
- 104
- 7
- 4
- 1225
- 693
- 63
- Sunday
- Thursday
- 39000
- 37000
Free maths tricks lessons, practice and worksheets at talentjr.in/maths-tricks