7th Grade - Rational Number Operations

Adding

100

-4 + 2

-2

200

19 + (-22)

-3

300

-6/11 + 7/11

1/11

400

-6.4 + (-4.21)

-10.61

500

2 1/4 + (-2/3)

1 7/12

Subtracting

100

-6 - 3

-9

200

-5.3 - (-2.1)

-3.2

300

5/7 - (-1/7)

6/7

400

-6.3 - (-7.46)

1.16

500

1 1/7 - 4/5

12/35

Multiplying

100

3 ⋅ (-5)

-15

200

-5/6 ⋅ 2/3

-5/9

300

-0.7 ⋅ (-3.2)

2.24

400

4.09 ⋅ (-2.3)

-9.407

500

-4 1/2 ⋅ 1 3/4

-7 7/8

Dividing

100

-3 ÷ 6

1/2

200

-3/4 ÷ 5/8

−1 1/5

300

-13.6 ÷ (-1.6)

8.5

400

-8 3/5 ÷ 3 2/7

-2 29/50

500

1.32 ÷ (-0.11)

-12

Mixed! (and Challenges!)

100

-2 x (-5) ⋅ (-3)

-30

200

(1.8) + (-3.2) - (- 4.5)

3.1

300

(2/8) + (-5.1) 

-4.85

400

(-0.8) ⋅ (1.32) ⋅ (0.2)

-0.2112

500

-0.8 + (4/5) ⋅ 2 1/4

1