Fractions, Decimals And Percents Worksheet - 7th Grade Page 5
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102. Decimals (Section 3.3, 3.4, 3.5 and 3.6)
(a) Adding and Subtracting Decimals
- Use mental math and show workings to calculate as well as estimation to check your
answers.
Examples: Estimate each sum or difference, then calculate.
(a)
3.1
(b)
7.32
(c)
3.5
(d)
3.63
+ 8.2
- 1.45
+ 4.26
- 2.5
(b) Multiplying Decimals
- using the area model, mental math and word problems.
Examples: Use the area model to find the product. Draw your model on the grid below and
your answer underneath.
(a) 2.2 x 1.5
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