add or subtract the following measurements. be sure each answer you enter contains the correct number of…
add or subtract the following measurements. be sure each answer you enter contains the correct number of significant digits.\n6.8 ml + 3.67 ml = ml\n17.900 ml + 5.57 ml = ml\n8.900 ml - 6.6 ml = ml
Answer
Explanation:
Step1: Add 6.8 mL and 3.67 mL
When adding or subtracting, we consider the least number of decimal places. 6.8 has one - decimal place. $6.8+3.67 = 10.47$. Rounding to one - decimal place gives 10.5 mL.
Step2: Add 17.900 mL and 5.57 mL
17.900 has three decimal places and 5.57 has two decimal places. We consider two decimal places. $17.900 + 5.57=23.47$ mL.
Step3: Subtract 6.6 mL from 8.900 mL
6.6 has one decimal place. $8.900−6.6 = 2.300$. Rounding to one - decimal place gives 2.3 mL.
Answer:
10.5 mL 23.47 mL 2.3 mL