Inside Collection (Course): Mathematics Grade 6

1.1 15

1.2 33

1.3 93

1.4 995

1.5 9 997

1.6 99 995

1.7 130

1.8 3 650

1.9 53

1.10 612

1.11 123

1.12 12

1.13 19

1.14 6

1.15

Puzzle out old code

1 286 1 335

- 539 - 934

- 101

1. During the previous activities you have worked with very large numbers. It is equally important to be able to subtract small numbers correctly. Let us see how you will manage the following mental calculations test! Work as quickly and accurately as possible:

1.1 31 – 16 = ______________________________________________________

1.2 52 – 19 =______________________________________________________

1.3 101 – 8 =______________________________________________________

1.4 1 004 – 9 =______________________________________________________

1.5 10 003 – 6 =_____________________________________________________

1.6 100 002 – 7 =____________________________________________________

1.7 240 – 50 – 60 =__________________________________________________

1.8 4 000 – 350 =____________________________________________________

1.9 (530 × 10) ÷ 100 =________________________________________________

1.10 Halve 1 225: ____________________________________________________

1.11 Triple: ________________________________________________________

1.12 (11 × 12) - ______________________________ = 120

1.13 100 – (9 × 9) =___________________________________________________

1.14 (38 -___________________________________) ÷ 4 = 8

1.15 ____________________________________ × 850 = 425

15

Colour in: This time I have done GOOD AVERAGE POOR.

Each letter represents a digit. Can you discover the numbers?

ROAD | _______________ | DEEP | _______________ | ||

- HIS | _______________ | - HER | _______________ | ||

EWE | _______________ | ROD | _______________ |

Do you know that this kind of mathematics is called Alpha-mathematics?

* 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 1.9:* We know this when the learner performs mental calculations involving:

**1.9.1:** addition and subtraction.

- « Previous module in collection To calculate by choosing methods that are appropriate for solving problem
- Collection home: Mathematics Grade 6
- Next module in collection » To solve problems in context