Add and subtract fractions and decimals, including negatives

Answer Key - Grade 7 Math Worksheet - Challenge Me

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

1. 1.

   Esme spots a shortcut in a four-number puzzle. What is (-3.8) + 5.6 + 3.8 + (-1.7)?

   3.9
2. 2.

   Jun finds a four-fraction puzzle in the math book. What is 7/8 + (-1/2) + (-7/8) + 3/4?

   1/4
3. 3.

   Milo rings a bell for a four-number question. What is (-0.6) + 1.9 + (-1.4) + 0.8?

   0.7
4. 4.

   Ren fills in a star puzzle: (-3/4) + ? = 1/2. What is the missing number?

   5/4
5. 5.

   Tala rings a bell for a blank: 2/3 + ? = (-1/6). What is the missing number?

   -5/6
6. 6.

   Zee learns that decimals can have thousandths. What is 2.375 + (-4.1)?

   -1.725
7. 7.

   Ari adds numbers with three decimal places. What is (-0.482) + (-1.37)?

   -1.852
8. 8.

   Esme picks a thousandths star card. What is (-6.2) + 3.125?

   -3.075
9. 9.

   Luz's tide gauge reads -1/2 ft at dawn. The tide rises 3/4 ft, then falls 5/6 ft. What does the gauge read now? (Below the dock mark is negative.)

   -7/12
10. 10.

    Milo's bucket water is 2/3 in above the fill line. It drops 3/4 in, then drops 1/2 in more. Where is the water now? (Below the line is negative.)

    -7/12