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MODULE TETS 5
1. a) 0,68
2. a) 8432,17
8432,168
8432,2 (3)
3.
23,6489 | |
23 648,9 | |
0,236489 | |
236 489 |
(4)
4. a) 523,017 (2)
5. 180 $$ 2,25
80 times (4)
6. 88,5 x 28,3
2 504,55 m ${}_{}^{}$ (4)
26. Let us play “Noughts and Crosses”!
You need a friend and a rectangle with decimal numbers as in the example.
You may also write your own decimal numbers in the blocks.
e.g. 2,5 : 25 ÷ 10 = 2,5 or
0,025 ´ 100 = 2,5
0,9 | 2,2 | 0,45 | 1,4 |
2,5 | 0,08 | 0,91 | 0,17 |
0,007 | 3,6 | 0,168 | 0,024 |
0,14 | 0,98 | 0,016 | 4,1 |
1. Write as a decimal fraction:
a) $\frac{\text{17}}{\text{25}}$ ..................................................
b) $\frac{7}{8}$ ..................................................
c) $\frac{9}{\text{20}}$ .................................................. (3)
2. Round off 8432,1679:
a) to 2 digits after the decimal comma: ..................................................
b) to the nearest 1 000th: ..................................................
c) to the nearest tenth: .................................................. (3)
3. Complete the table:
Number | 236,489 |
÷ 10 | ......................... |
× 100 | ......................... |
÷ 1 000 | ......................... |
× 1 000 | ......................... |
(4)
4. Calculate without a calculator:
a) r = 2 000 – 1476,983
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b) t = R4,70 × 0,21
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...................................................................................................... (3)
c) u = 26,80 ÷ 20
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5. How many times can a bottle with a capacity of 2,25 ℓ be filled from a 180 ℓ container?
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6. A space shuttle travels 88,5 m per second. How far will it travel in 28,3 seconds?
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(25)
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