Name ________________________________
Course: Math B
Date: __________________________
Homeroom:
Do Now # 18
1 gram = 1,000 milligrams 1 kilogram = 1,000 grams
1. An apple weighs 6 grams,
how many milligrams does it weigh?
2. Arianna’s purse weighs 5 kg.
How many grams does it weigh?
Multiplying With Zeros
6 x 100
200 x 8
5.67 x 10
0.8 x 100
Dividing with Zeros
60
10
500
250
2.6 ÷ 10
78.9 ÷ 100
STOP! Do not even THINK about going to the next page
Aims # 18
SWBAT….
Convert mass measurements within the customary system
Converting Customary Units of Mass
Show Brain Pop Video – Customary Units
Guided Practice:
1 pound = 16 ounces 1 ton = 2,000 pounds
1) A box weighs 32 oz. How many pounds is that?
Check for reasonableness
2) A bag of rice weighs 60 oz. How many pounds is that?
Check for reasonableness
3) The SWAT team van weighs 6 tons. How many pounds is that?
Check for reasonableness
4) A monkey weighs 13 pounds. How many ounces is that?
Check for reasonableness
STOP!!! Do NOT even THINK about going to the next page!
Independent Practice:
Directions: Set up a proportion to make each conversion. Then state why your
answer is reasonable (if it is not reasonable, then look for the error in your work).
1. Trisha’s hamster weighs 16 oz. How many pounds is that?
2. A sledge hammer weighs 54 ounces. How many pounds is that?
3. A backpack weighs 6 pounds. How many ounces is that?
4. A cement truck weighs 4 tons. How many pounds is that?
5. A tractor-trailer weighs 8,000 pounds. How many tons is that?
6. A Volvo weights half of a ton. How many pounds does it weigh?
7. A baby weighs 88 ounces. How many pounds does it weigh?
8. A fisherman caught 1.3 tons of shrimp. How many pounds is that?
9. James wants to buy a new car for his friend John. He wants to buy the lightest
car possible. A Prius weighs 2.5 tons. A Mini-Cooper weighs 7,000 pounds. Which
car should Jeremy buy?
10. Which has a larger value 2 tons or 4,000 pounds? How do you know? Explain
using complete sentences.
Genius Level
11. How many ounces are in 1 ton?
12. You can buy a 1 pound box or a 14.5 ounce box of penne pasta for the same
price. Which box should you buy? Justify your answer using mathematical
conversions.
13. A box of pasta noodles costs $3.65 for 14.5 ounces. A serving of pasta is
approximately 2 ounces. About how many servings are in the box? About how
much do you pay for each serving?
14. One pound is equivalent to about 454 grams. About how many grams are in 3
pounds?
15. Using the information from #14, about how many kilograms are there in 3
pounds?
Name ________________________________
Course: Math B
Date: __________________________
Homeroom:
Homework # 18
1 pound = 16 ounces
1 ton = 2,000 pounds
BLAST FROM THE PAST
Show your work and check for reasonableness.
Draw the net of the figures below.
USE YOUR NOTES
1. Little Anne caught a rabbit that weighed 8
pounds. How many ounces does it weigh?
1. Cylinder
2. Triangular prism
Answer: __________________________
2. Old Dan caught a squirrel that weighed 100 ounces.
How many pounds does it weigh?
3. Rectangular prism
Answer: __________________________
3. All of the scholars in 7th grade together weigh
9,800 lbs. How many tons is that?
4. Cube
Answer: __________________________
Name ________________________________
Course: Math B
Date: __________________________
Homeroom:
Exit Ticket # 18
1 pound = 16 ounces 1 ton = 2,000 pounds
1. Ms. Christy has a pet rabbit that weighs 48 ounces. How many pounds does it
weigh?
Justify the reasonableness of your answer: ______________________________________
_________________________________________________________________________________
_________________________________________________________________________________
2. A dump truck weighs 4 tons. How many pounds does it weigh?
Justify the reasonableness of your answer: ______________________________________
_________________________________________________________________________________
_________________________________________________________________________________