Add and subtract fractions and decimals, including negatives

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Milo draws a decimal card from the jar. What is (-1.75) + 0.6?

   -1.15
2. 2.

   Noah finds a decimal puzzle in the math book. What is (-3.08) + (-1.9)?

   -4.98
3. 3.

   Ren writes a decimal subtraction on the board. What is (-2.5) - 0.85?

   -3.35
4. 4.

   Zee draws a decimal subtraction card. What is (-1.6) - (-2.75)?

   1.15
5. 5.

   Ari draws a fraction card from the jar. What is (-1/2) + 1/3?

   -1/6
6. 6.

   Bo balances a fraction puzzle on the scales. What is 3/4 + (-5/6)?

   -1/12
7. 7.

   Esme finds a fraction puzzle in the math book. What is (-2/3) + (-1/4)?

   -11/12
8. 8.

   A tide gauge at Pia's dock reads -3/4 ft. The tide rises 5/6 ft. What does the gauge read now? (Below the dock mark is negative.)

   1/12
9. 9.

   Zee's frog sits at -1.75 on a number line, and a lily pad is at 0.5. How far is the frog from the lily pad?

   2.25
10. 10.

    Bo's toy turtle is at -4.2 on a number line, and a rock is at -1.85. How far is the turtle from the rock?

    2.35