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Problem
Problem
Round to the appropriate number of significant digits (a)
13.214
+
234.6
+
7.0350
+
6.38
13.214 + 234.6 + 7.0350 + 6.38
13.214
+
234.6
+
7.0350
+
6.38
(b)
1247
+
134.5
+
450
+
78
1247 + 134.5 + 450 + 78
1247
+
134.5
+
450
+
78
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