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Presentation transcript:

Splash Screen

Five-Minute Check (over Lesson 1–7) Main Idea Example 1: Problem-Solving Strategy Lesson Menu

I will solve problems by using the guess and check strategy. Main Idea/Vocabulary

The Bactrian camel has two humps, while the dromedary camel has just one. Zach counted 19 animals with a total of 27 humps. How many camels of each type are there? Example 1

Understand What facts do you know? Bactrian camels have two humps. Dromedary camels have one hump. There is a total of 19 camels and 27 humps. What do you need to find? How many camels of each type are there? Example 1

Plan You can use the guess and check strategy to solve the problem. Use combinations of 19 total camels to guess. Example 1

Solve Guess: 10 Bactrian camels and 9 dromedary camels Check: 10 × 2 = 20 humps 9 × 1 = 9 humps 20 humps + 9 humps = 29 humps Too high. Adjust your guess: Try fewer Bactrian camels and more dromedary camels. Example 1

Solve Guess: 7 Bactrian camels and 12 dromedary camels Check: 7 × 2 = 14 humps 12 × 1 = 12 humps 14 humps + 12 humps = 26 humps Too low. Adjust your guess: Try more Bactrian camels and less dromedary camels. Example 1

Solve Guess: 8 Bactrian camels and 11 dromedary camels Check: 8 × 2 = 16 humps 11 × 1 = 11 humps 16 humps + 11 humps = 27 humps This guess is correct. Answer: So, there are 8 Bactrian camels and 11 dromedary camels. Example 1

Check Look back at the problem. 8 + 11 = 19 camels and 16 + 11 = 27 humps. So, the answer is correct. Example 1

End of the Lesson End Lesson

Five-Minute Check (over Lesson 1–7) Image Bank Math Tool Chest Represent Decimals Resources

Order the set of numbers from least to greatest. (over Lesson 1–7) Order the set of numbers from least to greatest. 1,543, 2,876, 997, 998 2,876, 1,543, 998, 997 1,543, 2,876, 998, 997 997, 998, 1,543, 2,876 998, 1,543, 997, 2,876 A B C D Five Minute Check 1

Order the set of numbers from least to greatest. 2.51, 2.30, 2.15 (over Lesson 1–7) Order the set of numbers from least to greatest. 2.51, 2.30, 2.15 2.15, 2.30, 2.51 2.30, 2.15, 2.51 2.51, 2.30, 2.15 2.30, 2.51, 2.15 A B C D Five Minute Check 2

Order the set of numbers from least to greatest. 9.909, 6.89, 6.660 (over Lesson 1–7) Order the set of numbers from least to greatest. 9.909, 6.89, 6.660 6.89, 9.909, 6.660 6.660, 6.89, 9.909 9.909, 6.89, 6.660 6.660, 9.909, 6.89 A B C D Five Minute Check 3

Order the set of numbers from least to greatest. 5.2, 52.3, 40.48, 40 (over Lesson 1–7) Order the set of numbers from least to greatest. 5.2, 52.3, 40.48, 40 52.3, 40.48, 40, 5.2 40.48, 52.3, 40, 5.2 40, 5.2, 40.48, 52.3 5.2, 40, 40.48, 52.3 A B C D Five Minute Check 4

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