Decimals and fractions
Answers are for parents and teachers.
1
Write 0.29, 0.5 and 1.07 as fractions or mixed numbers.
0.29 = 29/100; 0.5 = 5/10; 1.07 = 1 7/100.
2
Write 3/10, 48/100, 6/100 and 2 9/10 as decimals.
0.3; 0.48; 0.06; 2.9.
3
Salma colours 28 squares red and 40 squares green on a hundred grid. Write each colour as a decimal. What decimal is not coloured?
Red 0.28, green 0.40. Coloured: 28 + 40 = 68 squares, so 100 − 68 = 32 are not coloured: 0.32.
4
Write <, > or = in each: 0.7 __ 0.70, 0.35 __ 0.53, 0.9 __ 0.2.
0.7 = 0.70; 0.35 < 0.53; 0.9 > 0.2.
5
Youssef says 0.3 + 0.7 = 0.10. What is wrong? What is the right answer?
3 tenths + 7 tenths = 10 tenths, which is one whole: 0.3 + 0.7 = 1.0 = 1. The answer 0.10 is only one tenth.