Multiply. Round using the proper number of significant digits. 56.4 X 34 = ___

1.   ?    1900
2.   ?    1917.6
3.   ?    1920
4.   ?    1918

Add. Round using the proper number of significant digits. 217.13 + 4.7 = ___

1.   ?    220
2.   ?    222
3.   ?    221.8
4.   ?    221.83

Divide. Round using the proper number of significant digits. 1700/3.00

1.   ?    566.7
2.   ?    567
3.   ?    566
4.   ?    570

Add. 56.2 + 12.12 = ____

1.   ?    68.32
2.   ?    68.3
3.   ?    68
4.   ?    70

How many significant digits are in the number 2.90 g?

1.   ?    1
2.   ?    2
3.   ?    3

Subtract. Round using the proper number of significant digits. 1147.8 - 32.45 = ____

1.   ?    1115.4
2.   ?    1115.3
3.   ?    1120
4.   ?    115.35

How many significant digits are in the number 290 g?

1.   ?    1
2.   ?    2
3.   ?    3

How many significant digits are in the number 1200 g?

1.   ?    1
2.   ?    2
3.   ?    3
4.   ?    4

How many significant digits are in the number 120.0 g?

1.   ?    1
2.   ?    2
3.   ?    3
4.   ?    4

How many significant digits are in the number 102.9 g?

1.   ?    1
2.   ?    2
3.   ?    3
4.   ?    4