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Exercise 4e
Round off each decimal to the nearest tenth.
a) 3.41 b) 5.76 c) 3.91
d) 6.23 e) 4.299 f) 1.323
g) 9 4.516 h) 7.888
Round off each decimal to the nearest hundredth.
a) 5.435 b) 6.218 c) 7.444
d) 2.619 e) 8.317 f) 2.515
g) 3.431 h) 9.152
Estimate the sum or difference first and then check your answer.
a) 52.9+17.98 b) 630.1 + 280.9 c) 78.92-69.11
d) 741.2 + 30.1 e) 943.6+ 834.6 f) 544.1-41.45
g) 41.01 +36.87 h) 56.23-11.26 i) 22.3-17.99
g) 123.4+ 567.8 h) 53.25-25.62 i) 995.5-747.1
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