Use of Calculators - Answers

65 - - = 20

(Any 2 numbers that add up to 45 exactly would be acceptable - e.g. 20 and 25)

+ + = 85

(Any 3 numbers that add up to 85 exactly would be acceptable - e.g. 20, 25 and 40)

x 4 = 8

Only 3 numbers will work on the left -
20 x 4 = 80,     21 x 4 = 84     and 22 x 4 = 88

26 x = 78

25 - 9 = 8 +

= 9

(Any 2 numbers from the 9 times table will work)

1345 = 269

128 x = 896

12 8 7       Average =

127 x 25

127 is one more than 126. If you add 25 to 3150 you will get the answer (3175).