Comparing and adding decimals and fractions
Answers are for parents and teachers.
1
Write <, > or = in each: 0.9 __ 0.09, 0.35 __ 0.4, 0.61 __ 0.6.
0.9 > 0.09; 0.35 < 0.4 (0.35 < 0.40); 0.61 > 0.6 (0.61 > 0.60).
2
Put 0.8, 0.08, 0.78 and 0.7 in order from the smallest to the greatest.
0.08, 0.7, 0.78, 0.8 (two places: 0.08, 0.70, 0.78, 0.80).
3
Which is greater, 5/10 or 48/100? Explain how you know.
5/10 = 50/100, and 50/100 > 48/100, so 5/10 is greater.
4
Add 6/10 + 17/100 and write the sum as a decimal.
60/100 + 17/100 = 77/100 = 0.77.
5
One rope is 0.75 m long and another rope is 0.8 m long. Which is longer? How long are they together?
0.8 = 0.80 and 0.80 > 0.75, so the 0.8 m rope is longer. Together: 0.75 + 0.80 = 1.55 m.