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Rounding Numbers

August 3, 2024
Posted by: admin
Category: Mathematical Literacy Notes

In this page you will learn about Rounding Numbers. Study or download the notes with questions and answers.

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About Rounding Numbers

In these notes you are going to be able to practice Rounding Numbers when calculating and solving questions. Make sure to practice all the questions so that you get used to solving problems of this nature.

Note that “Rounding Numbers” is a sub topic and you can also access more notes, questions and answers under the main topic “Operations On Numbers And Calculator Skills“ which is one of the recommended learning topics in the Mathematical Literacy Curriculum.

Rounding Numbers (Questions And Answers)

1.

Consider the following number: 4,81350

1.1 Round off to 1 decimal place

1.2 Round off to 2 decimal places.

1.3 Round off to 3 decimal places.

Answer:

1.1 = 4,8

1.2 = 4,81

1.3 = 4,814

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2.

Round off to one decimal place:

a) 235,02

b) 12,9477

c) 38,98

Answer:

a)≈ 235,0

b)≈ 12,9

c)≈ 39,0

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3.

Round off to two decimal places.

a) 14,111

b) 134 6983

c) 7 482,5104

Answer:

≈ 14,11

≈ 134,70

≈ 7 482,51

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4.

Round off to three decimal places:

a) 7,9999

b) 15,9983

c) 6,7053

Answer:

a) ≈ 8,000

b) ≈ 15,998

c) ≈ 6,705

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5.

Round off to the nearest 5 cents:

a) R335,73

b) R109,98

c) R34,56

Answer:

a) ≈ R335,75

b) ≈ R110,00

c) ≈ R34,55

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6.

Round off to the nearest rand :

a) R199,45

b) R39,98

c) R2 719,35

Answer:

a) ≈ R199

b) ≈ R40

c) ≈ R2 719

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7.

Round off to the nearest R5:

a) R4 532

b) R2 462,15

c) R3 617,95

Answer:

a) ≈ R4 530

b) ≈ R2 460

c) ≈ R3 620

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8.

Round off to the nearest 10:

a) 894

b) 788

c) 2 174

Answer:

a) ≈ 890

b) ≈ 790

c) ≈ 2 170

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9.

Round off to the nearest 100:

a) 38 192

b) 7 135

c) 448

Answer:

a) ≈ 38 200

b) ≈ 7 100

c) ≈ 400

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10.

Round off to the nearest 1 000:

a) 1 241

b) 94 355

c) 6 551

Answer:

a) ≈ 1 000

b) ≈ 94 000

c) ≈ 7 000

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11.

Given a budget of R65 and the price per dried fruit bar being R9.95, how many bars can you purchase?

Answer:

R65 ÷ R9,95

= 6,5327

≈ 6 bars

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12.

Given that Rob enjoys reading, he wants to construct a bookshelf that measures 1.3 meters (130 cm) in length. If the average width of his books is 3 cm, how many books can Rob fit on this shelf?

Answer:

130 + 3

= 43,33

≈ 43 books

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