Lesson 2

Variables in Proportion

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

    1. 25,914
    2. 442
    3. 7921
    4. Possible response: I thought about 90 × 90 = 8100. 7921 is close to 8100, so the answer is reasonable.
    1. 99
    2. 356 R13
    3. 1.185
    4. Possible response: 693 is close to 700. 700 ÷ 7 = 100. Since 99 is close to 100, the answer is reasonable.

E. Multiplication and Division

Choose a strategy to solve each problem. Use the pages in the Student Guide Reference section. Write remainders as whole numbers.

    1. 4319 × 6 =
    2. 34 × 13 =
    3. 89 × 89 =
    1. Show or tell how to use estimation to make sure your answer to Question 1C is reasonable.
    1. 693 ÷ 7 =
    2. 5709 ÷ 16 =
    3. 7.9 × 0.15 =
    1. Show or tell how to use estimation to make sure your answer to Question 2A is reasonable.