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Mathematics

Number concept, addition and subtraction

Addition

Educator section

Memorandum

Answers may differ

tEST 2

  • 1493
  • 469 + 1 426

2.1 34 367

2.2 24 809

3. 300; 436; + 47; 751

4.1 1 3900

4.2 29 100

5. 39018

6. R3 216,72

7. 3,2603915 + 23 684 193 = 23 684 196

Total: 20

Leaner section

Content

Activity: to solve in context problems that concern economic issues [lo 1.6]

1. Cash register slips are part of our lives. Wherever we buy and pay, we receive them. Let us take a closer look at a couple of them!

Your educator will provide you with the necessary paper.

Divide into groups of three. Collect at least three till slips from various shops in your area (you may collect more!) and compare them in terms of the following:

1.1

Lay-out: Where is the name of the shop written?

Is there an address? Where is it written?

Is there a telephone number? Where is it written?

Is there a fax number? Where is it written?

1.2 What, in addition to the above, is also indicated on the till slip?

1.3 Are there any similarities between the various till slips? If yes, what?

1.4 Are there any differences between the various till slips? If yes, what?

1.5 Which till slip is "best" according to you? Motivate your answer.

ASSESSMENT: TILL SLIPS
1 2 3 4
Co-operation with others Does not co-operate effectively Co-operates, but has to be prompted frequently Co-operates, but does not listen to opinions expressed by group members Co-operates beautifully and listens to suggestions made by group members
Tidiness and organisation Work is untidy and disorganised Organised, but difficult to read Neat and organised, easily legible Neat, clearly laid out work; easily legible
Completeness Fewer than 3 till slips. Not all questions answered A lot of information omitted Only a few questions were not answered Assignment executed completely

CHALLENGE!

Can you solve the following letter sum?

T A K

+ T A K

P O T

Each letter represents a different digit from 1 to 9. Find values for A, K, O, P and T.

(There are 13 possible solutions!)

Test

1. Complete:

1.1 1 493 + 1 268 = 1 268 + ________________________

1.2 (318 + 469) + 1 426 = 318 + (_________ + _________)

= ________________________ (3)

2. Add the numbers in each bubble.

2.1 2.2

(2)

3. Complete:

(4)

4. Estimate the sum of the following by rounding off to the nearest 100:

4.1 7 684 + 6 207 ________________________

4.2 15 216 + 13 899 ________________________ (2)

5. Use any method of your choice and calculate the sum of:

5.1 38 962 + 56 149

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(2)

6. Dad pays R899,95 for water and electricity; R438,27 for the telephone and R1 878,50 for groceries. What is the total amount Dad must pay?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(3)

7. Use the memory of your pocket calculator and calculate:

(48 632 ÷ 14 916) + (23 684 + 56 193)

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

(4)

TOTAL: 20

Assessment

Learning Outcome 1: The learner will be able to recognise, describe and represent numbers and their relationships, and to count, estimate, calculate and check with competence and confidence in solving problems.

Assessment Standard 1.6: We know this when the learner solves problems in context including contexts that may be used to build awareness of other Learning Areas, as well as human rights, social, economic and environmental issues such as:

1.6.1 financial (including buying and selling, profit and loss, and simple budgets).

Questions & Answers

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or infinite solutions?
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is it 3×y ?
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J, combine like terms 7x-4y
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Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
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Source:  OpenStax, Mathematics grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10994/1.3
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