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GETSenPhaseMaths
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This module is included inLens: Siyavula: Mathematics (Gr. 7-9)
By: SiyavulaAs a part of collection: "Mathematics Grade 7"
Collection Review Status: In Review
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Definition of a lens

Lenses

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“Noughts and Crosses” and Module Test

Module by: Siyavula Uploaders. E-mail the author

MATHEMATICS

Decimal Fractions

EDUCATOR SECTION

Memorandum

MODULE TETS 5

1. a) 0,68

a) 0,875
b) 0,45 (3)

2. a) 8432,17

8432,168

8432,2 (3)

Table 1

	23,6489
	23 648,9
	0,236489
	236 489

(4)

4. a) 523,017 (2)

a) 0,987 (3)
b) 1,34 (2)

5. 180 size 12{ div } {} 2,25

80 times (4)

6. 88,5 x 28,3

2 504,55 m size 12{ {} rSub {} rSup {} } {} (4)

Leaner Section

Content

ACTIVITY: “Noughts and Crosses” and Module Test

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.

Player 1 chooses any number on the rectangle and must say what number ÷ or × by 10, 100 or 1 000 will give that number.

e.g. 2,5 : 25 ÷ 10 = 2,5 or

0,025 ´ 100 = 2,5

Table 2
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

Player 2 checks with the calculator.
If player 1 is correct, he marks his block with a x or o.
Take turns until one of the players is the first one to get 4 x’s or o’s in a row. (horizontal, vertical or diagonal).

MODULE TEST

1. Write as a decimal fraction:

a) 17251725 size 12{ { {"17"} over {"25"} } } {} ..................................................

b) 7878 size 12{ { {7} over {8} } } {} ..................................................

c) 920920 size 12{ { {9} over {"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:

Table 3
Number	236,489
÷ 10	.........................
× 100	.........................
÷ 1 000	.........................
× 1 000	.........................

(4)

4. Calculate without a calculator:

a) r = 2 000 – 1476,983

......................................................................................................

...................................................................................................... (2)

b) t = R4,70 × 0,21

......................................................................................................

...................................................................................................... (3)

c) u = 26,80 ÷ 20

......................................................................................................

...................................................................................................... (2)

5. How many times can a bottle with a capacity of 2,25 ℓ be filled from a 180 ℓ container?

......................................................................................................

...................................................................................................... (4)

6. A space shuttle travels 88,5 m per second. How far will it travel in 28,3 seconds?

......................................................................................................

...................................................................................................... (4)

(25)

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A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

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This work is licensed by Siyavula Uploaders under a Creative Commons Attribution License (CC-BY 3.0), and is an Open Educational Resource.

Last edited by Siyavula Uploaders on Aug 12, 2009 8:02 am -0500.

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“Noughts and Crosses” and Module Test

MATHEMATICS

Decimal Fractions

EDUCATOR SECTION

Memorandum

Leaner Section

Content

ACTIVITY: “Noughts and Crosses” and Module Test

MODULE TEST

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