Luttrell 2012
38
Name: ______________________
Date: _____
3a-Decimal Notation
Use your calculator only to check your answer.
Write the following number in standard form:
1. (3×100) + (5×10) + (1×1) + (8×0.001)
2. (5×1000) + (3×10) + (4×0.1) + (5×0.01)
3. (4×1000) + (8×100) + (4×0.1) + (3×0.001) + (3×0.0001) + (5×0.00001)
4. (8×1) + (7×0.1) + (4×0.001) + (2×0.000001)
Write the following in expanded form, use the example as a guide:
27.6581 = (2×10) + (7×1) + (6×0.1) + (5×0.01) + (8×0.001) + (1×0.0001)
=
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2 10
7 1
6
5
8
1
1
10
1
100
1
1000
1
10000
×
+ × + ×
+ ×
+ ×
+ ×
5. 4.8712
6. 3.140092
7. 62.34
8. 144.987
Write the following lengths of a rectangle as fractions:
9. 0.47 m
10. 0.3609 m
11. 5.63 ft
12. Which area is largest? 3.404, 3.44, 3.40004, 3.4004
13. Which perimeter is smallest? 2.3, 2.31, 2.311, 2.3111, 2.31111