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 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

2. Read this first

   Use the table

   days	stickers
   2	14
   3	19
   4	24

3. 2.

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

   5
4. 3.

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

   10
5. 4.

   Milo bikes away from home (a squirrel keeps up). How many miles farther away does Milo get each hour?

   12
6. 5.

   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
7. 6.

   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
8. 7.

   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
9. 8.

   Zee reads an adventure book (the bookmark is tired). Zee has read 24 pages and reads 30 pages each hour. How many pages has Zee read after 3 hours?

   114
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