Rounding
Addition/Subtraction
Time
Mass
Volume
100
Round 27 to the nearest 10
30
100
342 + 157
499
100
how many hours are in a day?
24 hours
100
What does mass measure?
how much stuff
100
What does volume measure?
the amount of liquid
200
Round 31 to the nearest 10
30
200
728 + 365
1,093
200
how many minutes are in 1/2 (half) an hour?
30 minutes
200
What are the units we measure mass in?
grams and kilograms
200
What are the units we measure liquid volume in?
liters and mililiters
300
Round 172 to the nearest 100
200
300
267 - 143
124
300
8:19 but I'll count 8:20
300
Would you measure a big dog in grams or kilograms?
kilograms
300
Would you measure the amount of liquid in an eye drop in mililiters or liters?
mililiters
400
Round 538 to the nearest 100
500
400
521-134
387
400
Mrs. Genco left the school at 3:30 pm. It takes her 1 hour and 20 minutes to get home. What time did she get home?
4:50 pm
400
A bag of feathers is light. You would measure its mass using the unit _____.
grams
400
A big bathtub is full of water. You would measure its volume in _____.
liters
500
round 348 to the nearest 10
350
500
Ms. Berg had 247 pencils. She gave Ms. Barker 124 pencils. How many pencils does Ms. Berg have left?
123 pencils
500
Ms. Berg has theater club from 3:30 pm to 4:45 pm. How long is theater club?
1 hour and 15 minutes
500
What is this called?
pan balance scale
500
What is this called?
graduated cylinder