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This chapter provides a comprehensive guide to estimating differences through various rounding methods. It covers practical examples, such as estimating differences between two numbers using rounding to the nearest ten, hundred, or thousand. The examples include both simple numbers and monetary values for better understanding. By practicing these estimation techniques, readers will improve their mathematical skills and gain confidence in handling numerical differences efficiently. This chapter serves as a valuable resource for students looking to enhance their arithmetic capabilities.
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Chapter 5 Review Page 105
#1 To find about how many more, you can _________________ .
#2 342 – 214 =
#3 312 – 181 =
#4 162 – 51 =
#5 Use rounding to tens to estimate the difference. 67 - 29 -
#6 Use rounding to hundreds to estimate the difference. 967 - 283 -
#7 Use rounding to hundreds to estimate the difference. 748 - 599 -
# 8 Use rounding to thousands to estimate the difference. 4,175 - 1,832 -
#9 Use rounding to thousands to estimate the difference. 8,596 - 3,714 -
#10 341 -133
#11 837 -247
#12 $3.73 -$2.08
#13 645 -347
#14 800 -364
#15 $4.02 -$2.56