Spot the mistake in a written calculation

Question 1

Felix worked out 15 + 39 = 44. What is the correct answer?

Answer 

Question 2

Jamal worked out 61 − 27 = 46 by doing 7 − 1 in the ones. What is the correct answer?

Answer 

Question 3

Zara worked out 56 + 38 = 84. What is the correct answer?

Answer 

Question 4

Ethan worked out 41 − 28 = 27 by doing 8 − 1 in the ones. What is the correct answer?

Answer 

Question 5

Omar worked out 45 + 39 = 74. What is the correct answer?

Answer 

Question 6

Mei worked out 94 − 58 = 44 by doing 8 − 4 in the ones. What is the correct answer?

Answer 

Question 7

Ben worked out 56 + 38 = 84. What is the correct answer?

Answer 

Question 8

Omar worked out 91 − 64 = 33 by doing 4 − 1 in the ones. What is the correct answer?

Answer 

Question 9

Diego worked out 55 + 29 = 74. What is the correct answer?

Answer 

Question 10

Ines worked out 63 − 25 = 42 by doing 5 − 3 in the ones. What is the correct answer?

Answer 

Question 11

Ravi worked out 15 + 26 = 31. What is the correct answer?

Answer 

Question 12

Noah worked out 41 − 25 = 24 by doing 5 − 1 in the ones. What is the correct answer?

Answer 

Question 13

Noah worked out 48 + 37 = 75. What is the correct answer?

Answer 

Question 14

Mateo worked out 54 − 18 = 44 by doing 8 − 4 in the ones. What is the correct answer?

Answer 

Question 15

Mei worked out 27 + 18 = 35. What is the correct answer?

Answer 

Question 16

Daniel worked out 64 − 37 = 33 by doing 7 − 4 in the ones. What is the correct answer?

Answer