Decimals

Question 1

Round 8.536 to 2dp

Answer 1

8.54

Question 2

7.8 ÷ 0.02

Answer 2

(Can’t divide by decimal number, so 0.02 x 100 = 2, but if you x 0.02 by 100 you have to x 7.8 by 100)
780 ÷ 2 = 390

Question 3

0.2 x 0.34

Answer 3

0.068

take away the . so work out 2 x 34 = 68, then put the point back in 3 places from the right hand side

Question 4

Round 3.467 to 1dp

Answer 4

3.5

cut off after the 4 but because the next number is 6, change the 4 to a 5

Question 5

Which is bigger 1.03 or 1.025?

Answer 5

1.030
1.025
By adding extra 0 can see that 1.03 is bigger.

Question 6

Convert 0.15 to

a) a percentage
b) a fraction

Answer 6

0.15 x 100 = 15%

15% = 15/100 (÷5) = 3/20