Look at the clock - what time does it show? Write the digital time.
6:37
100
Solve: 45 - 36
9
100
Round 28 to the nearest ten.
30
100
Choose the better unit to use to measure the mass of a baseball hat:
a. grams
b. kilograms
a. grams
200
Look at the clock - what time does it show? Write the digital time.
1:55
200
Solve: 437 - 132
305
200
Round 194 to the nearest hundred.
200
200
Choose the better unit to use to measure the liquid volume of a swimming pool:
a. milliliters
b. liters
b. liters
300
Jenna got home from her jog at 4:47 p.m. She jogged for 45 minutes. What time did she start her jog?
Jenna started her jog at 4:02 p.m.
300
Solve: 562 g - 236 g
326 g
300
Round 1,234 to the nearest hundred.
1,200
300
Emma puts a 10 gram weight on a pan balance. How many 1 gram weights does she need to balance the scale?
Emma needs ten 1 gram weights.
400
Camille took her cookies out of the oven
at 2:12 P.M. She let them cool on the
kitchen table for 20 minutes before she
put them on a plate. What time did
Camille put her cookies on a plate?
Camille put her cookies on a plate at 2:32 p.m.
400
Emma's oranges, apples, and grapes weigh 968 g. Together the oranges and apples weigh 649 g. How much do the grapes weigh?
319 g
400
Emma has 713 milliliters of water in a pitcher. She pours another 124 milliliters into the pitcher. How much water does Emma have in the pitcher now?
Estimate by rounding to the nearest ten.
830 milliliters
400
Emma puts a 100 gram weight on a pan balance. How many 10 gram weights does she need to balance the scale?
Emma needs ten 10 g weights.
500
A video game was started at 7:01 p.m. It ended 27 minutes later. What time did the game end?
The video game ended at 7:28 p.m.
500
It takes Emma 19 minutes to drive to the pumpkin patch from home. She stays there for 38 minutes. How long is Emma on her trip before she goes home?
Emma is on her trip for 57 minutes.
500
A fish tank holds 403 liters of water. 185 liters were emptied out. How many liters are left in the fish tank?
a. Estimate how many liters are left in the tank by rounding to the nearest ten.
b. Estimate how many liters are left in the tank by rounding to the nearest hundred.
c. How many liters are actually left?
d. What estimate was closer?
a. 210 liters
b. 200 liters
c. 218 liters
d. Estimation by rounding to the nearest ten. 210 liters is closer to 218 liters than 200 liters.
500
The Dranger family used 228 liters of water on Monday, 196 liters of water on Tuesday, and 247 liters on Wednesday. How many liters of water did the Dranger family use in three days?
The Dranger family used 671 liters of water in three days.
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Unit Two Review
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