Lesson 5

Multiples on the Calendar

Est. Class Sessions: 1

Daily Practice and Problems

Teacher Notes
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TIMS Challenge

Use this challenge to develop mental strategies and number sense for multiplication facts for the 10s.

  1. The group will need 5 tents. 4 tents with 4 people each would hold 16 people. So five tents are needed. At $20 each, the tents will cost $100.

    5 × $20 or $20 + $20 + $20 + $20 + $20 = $100
  2. The group will need 9 canoes. 8 canoes with 2 people each seat 16 people. One more canoe for one more person, so 9 canoes are needed. The cost will be $90.

    9 × $10 = $90 or $10 + $10 + $10 + $10 + $10 + $10 + $10 + $10 + $10 = $90
  3. The cost of renting tents and canoes will be $190.

    $100 + $90 = $190

Ongoing Assessment

Use DPP Challenge P to assess students' abilities to solve two-step word problems involving multiplication and division [E4].

The workshop in Lesson 6 provides targeted practice.

P. Camping Trip

  1. The camping club at the high school is planning a camping trip. There are fifteen boys in the club and two fathers that will go on the trip. They plan to rent tents and canoes at the campsite. Each tent holds four people and costs $20.00. How much will it cost the group to rent enough tents for everyone? Show how you solved the problem.
  2. Each canoe costs $10.00 and seats two people. How many canoes will the group need to rent so everyone can go canoeing? What will it cost to rent them? Show how you solved the problem.
  3. What is the total cost of renting tents and canoes?