Mental Maths warm up

Front

Decrease four hundred and thirty by fifty.

Back

380, three hundred and eighty

Front

How many minutes are there in two hours?

Back

120 minutes, 120

Front

Which of these numbers is half of 90? 55, 45, 60, 30

Back

45

Front

Write the sum of 500, 50 and 5.

Back

555

Front

What is the remainder when 93 is divided by 10?

Back

3

Front

What is the sum of 10 and 15?

Back

25

Front

What is 100 minus 25?

Back

75

Front

If you have 8 apples and you eat 3, how many do you have left?

Back

5 apples

Front

What is 6 times 7?

Back

42

Front

What is the difference between 50 and 20?

Back

30