Numbers, Operations and Relationships - Term 2 Flashcards

1
Q

Add one tenth to the following:

a) 5,5
b) 6,35
c) 0,93

A

a) 5,6
b) 6,45
c) 1,03

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2
Q

Add one hundredth to the following:

a) 5,5
b) 6,35
c) 0,93
d) 5,89

A

a) 5,51
b) 6,36
c) 0.94
d) 5,9

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3
Q

Add one thousandth to the following:

a) 5,5
b) 6,35
c) 0,931
d) 5,899

A

a) 5,501
b) 6,351
c) 0,932
d) 5,9

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4
Q

Subtract one tenth from the following:

a) 5,5
b) 6,35
c) 0,93

A

a) 5,4
b) 6,25
c) 0,83

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5
Q

Subtract one hundredth from the following:

a) 5,5
b) 6,35
c) 0,931

A

a) 5,49
b) 6,34
c) 0,921

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6
Q

Add two more numbers to the pattern:

0,4; 0,5 0,6;

A

0,7; 0,8

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7
Q

Add two more numbers to the pattern:

24,6; 25,1; 25,6;

A

26,1; 26,6

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8
Q

Arrange these numbers in descending order:

0,07; 0.01; 0,005; 0,3; 0,075

A

0,3; 0,075; 0,07; 0,01; 0,005

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9
Q

0,5 + 0,6 =

A

1,1

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10
Q

1,4 + 1,7 =

A

3,1

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11
Q

3,7 - 2,8 =

A

0,9

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12
Q

Write the decimal for seven tenths.

A

0,7

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13
Q

Write the decimal for fifteen and two tenths.

A

15,2

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14
Q

Write 25/100 as a decimal.

A

0,25

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15
Q

Round off 1.34 to one decimal place.

A

1,3

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16
Q

Round off 5,67 to one decimal place.

A

5,7

17
Q

What is 475 ÷ 19

A
25
   \_\_\_\_\_\_
19| 475
    -38
        95
       -95
         0

So the answer is 25

18
Q

Do this by long division: 1485 ÷ 33

A

45

19
Q

16 classmates club together to buy their teacher a gift for R432. How much is each child’s contribution?

A

R27

20
Q

If you feel your long division is a bit rusty, ask Donald. He has some worksheets for you.

A

How exciting!

21
Q

What is South Africa divided by Jacob Zuma?

A

Eish

22
Q

What is the area of a 40m x 50m rectangle?

A

40 x 50 = 2000sq m

23
Q

23 x 43 =

A

989

24
Q

_ ÷ 342 = 321

A

109782

25
Q

What is 422 x 36?

A

15192

26
Q

What does commutative mean?

A

An operation is commutative if a change in the order of the numbers does not change the result.

27
Q

Is multiplication commutative?

A

Yes

28
Q

Is subtraction commutative?

A

No

29
Q

What does associative mean?

A

An operation is commutative if a change in the grouping does not change the result.

30
Q

What does distributive mean?

A

A factor can be broken apart. E.g. 3 x 12 = (3x10) + (3x2)