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Addition (Easy)

100

7x + 3x

10x

200

-6x + x + 2x

-3x

300

7xy + 2xy + xy

10xy

400

-4x² + 6x² + 2x²

4x²

500

1/2 x + 2/3 x + 3/4 x

23/12 x

Subtraction (Easy)

100

8x - 4x

4x

200

-8x - 2x - 3x

-13x

300

5xy - xy - 11xy

-7xy

400

-5x² - 7x² - 3x²

-15x²

500

2/3 x - 3/4 x - 4/5 x

-53/60 x

Addition (intermediate)

100

5x² + 6x²

11x²

200

5x² + 6x² + 7x²

18x²

300

3a+4b+2a+5b

5a+9b

400

5x² + 4x³ + 3x² + x³

8x² + 5x³

500

-11/4 uw + 2/7 w + 2uw + 9/7 w

-3/4 uw + 11/7 w

Subtraction (intermedi)

100

3m³ - 10m³

-7m³

200

3x² - 4x² -5x²

-6x²

300

5a - 6b - 4a - 7b

a - 13b

400

7x² - 6x³ - 5x² - 2x³

2x² - 8x³

500

-12/5 uw - 3/8 w - 3uw - 10/9 w

-27/5uw -107/72w