Quiz about Adding and Subtracting Rational Numbers

Question 1

- ⁷/₈ - ¹/₂

Accepted Answer

-1 3/8

Answer

- 11/7

Answer

- ⁸/₁₁

Answer

-1 1/8

Question 2

-3/7 + 4/5

Accepted Answer

13/35

Answer

43/35

Answer

-13/35

Answer

-43/35

Question 3

-5.7 + 0.9

Accepted Answer

-4.8

Answer

2.1

Answer

-8.3

Answer

-10.7

Question 4

4/9 + (-2/3) =

Accepted Answer

-2/9

Answer

1 1/9

Answer

-1 1/9

Answer

2/9

Question 5

5.23 - (-9.1)

Accepted Answer

14.33

Answer

-3.87

Answer

3.87

Answer

4.32

Question 6

-51 + 81.623

Accepted Answer

30.623

Answer

-30.623

Answer

132.623

Answer

-132.623

Question 7

Find -6.23 - 7.5

Accepted Answer

-13.73

Answer

13.73

Answer

1.3

Answer

-1.2

Question 8

⁸/₁₅ + (-⁶/₁₅)

Accepted Answer

2/15

Answer

14/15

Answer

-2/15

Answer

-14/15

Question 9

2.75 - (-1.25)

Accepted Answer

4

Answer

-4

Answer

1.5

Answer

-1.5

Question 10

Rewrite the problem as addition.

-5.66 - (-4.1)

Accepted Answer

-5.66 + 4.1

Answer

5.66 + (-4.1)

Answer

-5.66 + (-4.1)

Answer

-5.66 - 4.1

Question 11

-40 + 15.05=

Accepted Answer

-24.95

Answer

55.05

Answer

24.95

Answer

14.65

Question 12

Evaluate the expression. Rewrite as addition first (keep change change). Then write 0.4 as a fraction and simplify it. Remember that 0.4 is in the tenths column. Then add the fractions. $$-\frac{1}{10}\ +\ 0.4\ -\ \left(-\frac{4}{5}\right)$$

Accepted Answer

$$1\ \frac{1}{10}$$

Answer

$$-1\ \frac{1}{10}$$

Answer

$$-\frac{1}{2}$$

Answer

$$\frac{1}{2}$$

Question 13

Evaluate the expression. Rewrite as addition. Change all fractions to decimals first. $$\frac{3}{4}\ -\ 0.78\ +\ \frac{1}{2}$$

Accepted Answer

0.47

Answer

-2.03

Answer

2.03

Answer

-0.47

Adding and Subtracting Rational Numbers

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