Mental maths T4 W6

• 25

• 30

• 35

• 40

• 8

• 9

• 10

• 11

• 0.2

• 0.4

• 0.5

• 0.6

If 10% of a number is 5, what is the number?

• 40

• 50

• 60

• 70

• 7

• 8

• 9

• 10

Estimate the sum of 23.4 and 12.7 by rounding each number to the nearest whole number.

• 35

• 36

• 37

• 38

• 4.5

• 5.0

• 5.5

• 6.0

• 3

• 4

• 5

• 6

Express the ratio 10:30 in its simplest form.

• 1:2

• 1:3

• 1:4

• 1:5