Steady change that starts above zero

Answer Key - Grade 7 Math Worksheet - Building Confidence

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

1. 1.

   Each 1 more week adds 3. Ari measures a plant (it leans toward the window). The table shows one row and the change. How tall was the plant at the start, at 0 weeks?

   6
2. 2.

   Each 1 more minute adds 2. Esme fills a bucket from a circle (it drips). The table shows one row and the change. How many liters were in the bucket at the start, at 0 minutes?

   3
3. 3.

   Each 1 more hour adds 6. Jun knits a scarf (the yarn ball rolls away). The table shows one row and the change. How long was the scarf at the start, at 0 hours?

   20

4. Read this first

   Use the table

   days	stickers
   2	14
   3	19
   4	24

5. 4.

   Kira collects star stickers (one sparkles). How many stickers does Kira collect each day?

   5
6. 5.

   Luz plays a quiz game (the buzzer is loud). How many points does Luz earn each round?

   10
7. 6.

   Noah measures a plant (it leans toward the window). Rule: y = 4x + 7, with x in weeks and y in cm. What is y when x is 5?

   27
8. 7.

   Snow falls on Ren's street (the snowman shivers). Rule: y = 2x + 5, with x in hours and y in inches. What is y when x is 6?

   17
9. 8.

   Tala stacks books on a tray (the top one wobbles). Rule: y = 2x + 9, with x books and y in cm. What is y when x is 7?

   23
10. 9.

    Ari bikes away from home (a squirrel keeps up). Ari is 3 miles from home and bikes 10 miles farther away each hour. How many miles from home is Ari after 4 hours?

    43
11. 10.

    Bo collects star stickers (one sparkles). Bo has 12 stickers and collects 4 more each day. How many stickers does Bo have after 5 days?

    32