Question

rules for adding and subtracting: the answer has the same number of decimal places as the quantity with the fewest decimal places.
example: 6.043 mm + 9.1 mm = 15.143 mm = 15.1 mm (round to tenths place)

1. 704.09 g + 8.0320000 g =
2. 5.3025 ml + 1.0 ml =
3. 9.70 kg - 3.541 kg =
4. 7,801 mm + 231.6 mm =

Explanation:

Step1: Add the numbers

For 4) $704.09+8.0320000 = 712.1220000$. Since 704.09 has two decimal - places and 8.0320000 has more decimal - places, we round to two decimal places. So the result is 712.12 g.

Step2: Add the numbers

For 5) $5.3025 + 1.0=6.3025$. Since 1.0 has one decimal - place, we round to one decimal place. So the result is 6.3 mL.

Step3: Subtract the numbers

For 6) $9.70−3.541 = 6.159$. Since 9.70 has two decimal - places, we round to two decimal places. So the result is 6.16 kg.

Step4: Add the numbers

For 7) $7801+231.6 = 8032.6$. Since 7801 has no decimal - places, we round to no decimal places. So the result is 8033 mm.

Answer:

1. 712.12 g
2. 6.3 mL
3. 6.16 kg
4. 8033 mm