Decimal word problems: add and subtract
Decide whether to add or subtract, then line up the decimal points.
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One parcel is 2.5 kg and another parcel is 6.1 kg. How many kg are there in total?
Answer: 8.6
One bag of flour is 8.3 kg and another bag of flour is 6.5 kg. How many kg are there in total?
Answer: 14.8
One plank is 9.9 m and another plank is 7.1 m. How many more m is the first one?
Answer: 2.8
Tip: Decide whether to add or subtract, then line up the decimal points.
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