Mathematics
Number concept
Educator section
Memorandum
1.1 1 065
1.2 2 466
1.3 28 745
1.4 50 271
1.5 373 097
1.6 462 563
Puzzle!
12 54 24
42 30 18
36 6 48
Leaner section
Content
Activity: to calculate by selecting and using operations appropriate to solving problems [lo 1.8.2]
To use a series of techniques to perform calculations [lo 1.10.1]
1. Read the following questions attentively. Then decide which operations you need to use to find the answers. Use your pocket calculator and write down the number that is:
1.1 598 more than 467
1.2 2 346 less than 4 812
1.3 5 098 more than 23 647
1.4 46 138 less than 96 409
1.5 123 516 more than 249 581
1.6 435 091 less than 897 654
Puzzle!
- Complete the following magic square. The sum of the numbers down, across or diagonally is 90.
12 | _______ | _______ |
_______ | 30 | 18 |
_______ | _______ | _______ |
Time for self-assessment
I can count forwards and backwards in hundreds. (LO 1.9) | 1 | 2 | 3 | 4 | ||
I can count forwards and backwards in thousands. (LO 1.9) | 1 | 2 | 3 | 4 | ||
I can count forwards and backwards in ten thousands. (LO 1.9) | 1 | 2 | 3 | 4 | ||
I can complete number sequences by observing the patterns. (LO 2.1) | 1 | 2 | 3 | 4 | ||
I can write numbers by means of expanded notation. (LO 1.10) | 1 | 2 | 3 | 4 | ||
I am able to read hundred thousands from a number line. (LO 1.4 en LU 1.10) | 1 | 2 | 3 | 4 | ||
I can fill in the relationship signs (<;>; =) correctly. (LO 1.3) | 1 | 2 | 3 | 4 |
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 1.8: We know this when the learner estimates and calculates by selecting and using operations appropriate to solving problems that involve:
1.8.2: addition and subtraction of whole numbers.
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 1.10: We know this when the learner uses a range of techniques to perform written and mental calculations with whole numbers including:
1.10.1: adding, subtracting and multiplying in columns.