30
30,000
27
27
Two ways of answering: Nearest ten to 16 = 20, nearest ten to 13 = 10 so sum of neaest tens = 20 + 10 = 30 Alternative: 16 + 13 = 29. Nearest ten to 29 = 30. In this case the two answers agree, but they need not. eg 14 + 13. Nearest at first step gives 10 + 10 = 20 Nearest at last step gives 14 + 13 = 27 which goes to 30.
30
30,000
30 000 (i think)
27
27
27
Two ways of answering: Nearest ten to 16 = 20, nearest ten to 13 = 10 so sum of neaest tens = 20 + 10 = 30 Alternative: 16 + 13 = 29. Nearest ten to 29 = 30. In this case the two answers agree, but they need not. eg 14 + 13. Nearest at first step gives 10 + 10 = 20 Nearest at last step gives 14 + 13 = 27 which goes to 30.
It is 27 grams.
The square root of 27, when rounded to the nearest tenths place, is 5.2
27.000
The answer is 27 since 27 itself is an integer.
The nearest 10 is 10.