Lesson 5

Mass vs. Number

Est. Class Sessions: 3–4

Daily Practice and Problems

Teacher Notes
X

TIMS Task

    1. 40
    2. 5 × 8 = 40
    1. 22
    2. 6 + 2 × 8 = 22
    1. 20
    2. Possible response: I started on 100 and hopped back 80 because 10 × 8 = 80, so I landed on 20.

N. Constant Hoppers

Use your desk number line to solve the problems.

  1. A constant hopper started at 0 and made 5 hops of +8.
    1. On what number did it land?
    2. Write a number sentence to show your hops.
  2. A constant hopper started on 6 and made 2 hops of +8.
    1. On what number did it land?
    2. Write a number sentence to show your hops.
  3. A constant hopper landed on 100 after making 10 hops of +8.
    1. On what number did it start?
    2. Show or tell how you used your number line to solve 3A.