Question

The weights of four bags are 2.36 kg, 1.72 kg, 0.77 kg and 3.09 kg. If the weights are rounded to the nearest one-tenth of a kilogram, what is the estimate of the total weight of bags?

Answer 1

Answer:

7.2kg

Explanation:

Note: Numbers 1 - 4 = Round down

Numbers 5 - 9 = Round up

1/10 tenth of a kilogram = 100g = 0.1kg

2.36kg ≈ 2.4kg

1.72kg ≈ 1.7kg

3.09kg ≈ 3.1kg

Total = 2.4 + 1.7 + 3.1 = 7.2kg