<< Chapter < Page  Chapter >> Page > 
1.
1.1 8 366
1.2 7 452
1.3 8 664
1.4 9 548
2.
2.1 6 750
2.2 8 260
2.3 3 516
2.4 9 379
3.
3.1<
3.2<
3.3<
3.4<
1. 46
2. 26
3. 39 337
4. 5 000 I)
5. 4 072 j)
6. 4 440
7. 7 739
8. =
9. 14; 5
10. 1 000; 8
MORE OR LESS?
1. If you know where the tens and hundreds are in a number (place value) it is easy to add 10 or 100 (more than), or subtract 10 or 100 (less than). See whether you can write down the answer immediately! Which number is:
1.1 10 more than 8 356?_____________________________________________
1.2 10 less than 7 462? ______________________________________________
1.3 100 more than 8 564? ____________________________________________
1.4 100 less than 9 648? _____________________________________________
2. In this activity you must read the question carefully and compare your answer to the given number to ensure that you have worked correctly.
2.1 6 740 is 10 less than _____________________________________________
2.3 3 526 is 10 more than _____________________________________________
2.4 9 279 is 100 less than _____________________________________________
Note: "less than" now means that you must add to get the right answer, and "more than" means that you must subtract to calculate the answer!
COMPARING AND ARRANGING
>means "larger than"
<means "smaller than"
= means "equal to" or "the same as"
3. We can use the mathematical symbols<;>and = when we compare answers. It is important that you calculate the answer correctly, or the symbol will be wrong! Now calculate the answer where necessary, compare the answer left of the é wit the one right of the é and then complete:<;>or =:
3.1 (5 × 6) + 9 * 41
3.2 8 921 * 9 821
3.3 2 356 * 2 000 + 500 + 30 + 6
3.4 4 000 + 200 + 50 + 7 * 4 275
FUN WITH THE POCKET CALCULATOR!
Work with a friend. You will need one pocket calculator.
ASSESS YOURSELF BEFORE GOING FURTHER!
Complete the following by marking the applicable column only:
Not at all  Almost  Good  Excellent  




I am able to insert the signs that show relationship (>;<; = ) correctly (LO 1.3) 
LET US SEE HOW YOU ARE COPING.
1. How many hundreds are in 4 600?___________________________________
2. How many thousands are in 26 000? _________________________________
3. Encircle all the odd numbers in the following:
14 ; 39 ; 128 ; 337 ; 4 000
4. What is the value of the 5 in 5 713?__________________________________
5. Which number is represented in the following diagram?
6. Encircle the largest number:
4 040 ; 4 404 ; 4 440 ; 4 004
7. Which number is 100 more than 7 639?_______________________________
8. Fill in>;<of = :
40 + 200 + 3 000 + 6 ____________________ 3 246
9. Complete the pattern:
41 ; 32 ; 23 __________________ ; __________________
10. Complete:
2 386 = (2 × _________) + (3 × 100) + (_________ × 10) + (6 × 1)
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 1.3: We know this when the learner recognises and represents numbers in order to describe and compare them:
Assessment Standard 1.8: We know this when the learner estimates and calculates by selecting and using operations appropriate to solving problems.
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