+ and -
X and ÷
Order of opperation
Indicies
Rounding
100

Use column addition 18764 + 98745

117, 509

100

5 x 300

1500

100

5 + 3 x 2

11

100

2 squared 

4

100

round to 1 decimal point 10.191

10.2

200

Use column subtraction 34 005 - 17 547

16,485

200

250 divided by 10

25

200

8 + 10 ÷ 5

10

200

5 squared

25

200

round to 2 decimal point 5.341

5.34

300

Use partitioning strategy to solve 3525 - 2415

3000 - 2000 = 1000, 500 - 400 = 100, 20 - 10 = 10, 5 - 5 = 0       1150
300

4 x 350

1400

300

(15 - 10) + 7

12

300

10 squared 

100

300

round to 3 decimal points 8.9459

8.946

400
Use compensation strategy for 65 + 89

57 + 90 = 147 - 1 = 146

400

200 x 120

24000

400

50 ÷ 5 x 3

30

400

2 cubed 

8


400

Round to 4 decimal points 57.65667

57.6567

500

Say 3 other ways that could be used to say addition

add, plus, althogether, join, sum, total, how many, combined, both

500

40 x 250

10,000

500

3 x 6 + ( 10 + 10)

38

500

5 cubed

125

500

Round to 2 decimal points 80.696

80.70

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