Revision

Place Value/Expanded form

100

What is the value of 6 in 567?

60 or 6 tens

200

What is the value of 8 in 8076

8000 or 8 thousands

300

What is 5679 in expanded form WITHOUT indices?

5x1000+6x100+7x10+9x1

400

What is 7894 written as expanded form WITH indices?

7x10³+ 8x10²+9x10¹+4x1

500

What is 6087 written in expanded form WITH index notation?

6x10³+ 8x10¹+7x1

Indices

100

Simplify 5x5x5x5x5 with indices

5⁵

200

Simplify 2x2x3x2x3x3 with indices

2³+3³

300

Simplify AND evaluate:
2x2x2+3x3

2³+3² 

= 8 + 9
= 17

400

Simplify and evaluate:

4+3x3-2

4+3²-2

= 4+9-2

= 13 -2

= 11

500

Simplify and evaluate:

4x4 - 3x3 +2

4²-3²+2

=16 - 9 +2

= 9

Mental strategies

100

Use partitioning to solve:
124 +132

100+100+20+30+4+2 = 256

200

Use compensating to solve:
29 + 35

30+35 - 1 = 74

300

Use doubling or halving to solve:

75 + 78 

75 + 75 + 3 = 153

400

Use halving/halving to solve:

320 divided by 8

160 divided by 4

80 divided by 2

= 40

500

Use compensating to solve:

121 - 19 

121-20 + 1 = 102

Factors/Multiples

100

What are the factors of 6?

1,2,3,6

200

What are the first 6 multiples of 4?

4,8,12,16,20,24

300

What are the factors of 7?

1 and 7

400

What is the HCF of 8 and 32?

8

500

What is the LCM of 6 and 15?

30

Square/Square root

100

Evaluate 4²

16

200

Evaluate 2² + 4²

20

300

What is the square root of 64?

8

400

Evaluate what the square root of 25 is added to the square root of 100?

15

500

Evaluate what the square root of 9 is multiplied with the square root of 16?

3x4 = 12