1. Module 2 Lessons 15 & 16 Add measurements once & twice using the standard algorithm to compose larger units.

2. ______ = 1 L 200 ml = 1 L ______ = 1 L Metric Units 1 L = 1000 ml 800 ml + ______ = 1 L 500 ml + 750 ml + 500 ml = 1 L 250 ml = 1 L

3. 500 g = _____ 500 g = 500 g 300 g = _____ Metric Units 1 Kg = 1000 g 1000 Kg - 650 g = _____ 1000 Kg - 300 g = 700 g 650 g = 350

4. Part-Whole with Metric Units There are 100 centimeters in 1 meter. How many centimeters are in 4 meters? 1 meter 100 Centimeters 400 centimeters There are 100 centimeters in 1 meter. How many centimeters are in 5 meters? 500 Centimeters There are 100 centimeters in 1 meter. How many centimeters are in 7 meters? 700 centimeters

5. Part-Whole With Time 30 minutes + _______ = 1 hour 1 hour = 60 minutes 30 Minutes

6. Part-Whole With Time 25 minutes + _______ = 1 hour 1 hour = 60 minutes 35 Minutes

7. Round 87 to the nearest 100. 100 50 100 0 87

8. What is 73 rounded to the nearest 10? 70 Rounding

9. What is 77 rounded to the nearest 10? 80 Rounding

10. What is 127 rounded to the nearest 10? 130 Rounding

11. Use mental math to solve the following problems: 46 ml + 5 ml --------- 51 ml 39 cm + 8 cm ------- 47 cm 108 L + 4 L ----------- 112 L

12. Beaker A 56 mL Beaker B 27 mL Represent the water from beaker A on the chart using place value disks. Now add the water from beaker B using place value disks.

14. Beaker A 56 mL 56 +27 --------

15. Beaker A 56 mL Beaker B 27 mL Now add the place value disks together to find the amount of water in both beakers. 83 mL

16. Use Your Place Value Chart to solve this problem: Lisa draws a line on the board. Mark erases 32 cm of the line. Now the line is 187 cm. How long was the line that Lisa drew?

17. Use Your Place Value Chart to solve this problem: Lisa draws a line on the board. Mark erases 32 cm of the line. Now the line is 187 cm. How long was the line that Lisa drew? 187 +32 -------------

18. Use Your Place Value Chart to solve this problem: Lisa draws a line on the board. Mark erases 32 cm of the line. Now the line is 187 cm. How long was the line that Lisa drew? Use Your Place Value Chart to solve this problem: Lisa draws a line on the board. Mark erases 32 cm of the line. Now the line is 187 cm. How long was the line that Lisa drew? 1 187 +32 ------------- 219

19. Use Your Place Value Chart to solve this problem: Lisa draws a line on the board. Mark erases 32 cm of the line. Now the line is 187 cm. How long was the line that Lisa drew? 1 187 +32 ------------- 219

20. The line was 219 cm long.

21. Use Your Place Value Chart to solve this problem: John reads for 74 minute on Wednesday. On Thursday he reads for 17 minutes more than on Wednesday. How many total minutes does he read? 74 + 17 -------

22. Use Your Place Value Chart to solve this problem: John reads for 74 minute on Wednesday. On Thursday he reads for 17 minutes more than on Wednesday. How many total minutes does he read? 1 74 74 + 17 ------- 5

23. Use Your Place Value Chart to solve this problem: John reads for 74 minute on Wednesday. On Thursday he reads for 17 minutes more than on Wednesday. How many total minutes does he read? 1 74 74 + 17 ------- 5

24. Use Your Place Value Chart to solve this problem: John reads for 74 minute on Wednesday. On Thursday he reads for 17 minutes more than on Wednesday. How many total minutes does he read? 1 74 74 + 17 ------- 165

25. Use Your Place Value Chart to solve this problem: John reads for 74 minute on Wednesday. On Thursday he reads for 17 minutes more than on Wednesday. How many total minutes does he read? 1 74 74 + 17 ------- 165

26. John read 165 minutes

27. The goldfish aquarium at Bob’s Pet Store holds 189 liters of water. The guppy aquarium has 94 more liters of water than the goldfish aquarium. How many liters of water are in both aquariums? What operation will we use to solve the problem? 189 liters + 94 liters 3 1 8 1 2 liters Are we done? NO!

28. The goldfish aquarium at Bob’s Pet Store holds 189 liters of water. The guppy aquarium has 94 more liters of water than the goldfish aquarium. How many liters of water are in both aquariums? We just figured out that there are 283 liters of water in the guppy aquarium. Now we need to figure how many liters are in both aquariums. 189 liters + 283 liters 2 1 7 1 4liters Now are we done? Yes! The aquariums contain 472 l of water. Yes! The aquariums contain 472 l of water.

29. Now Show What YOU know! Problem Set!