Time (materials: analog clock)  Addition and Subtraction  Rounding  Measurement 

1006:37
Look at the clock  what time does it show? Write the digital time.

1009
Solve: 45  36

10030
Round 28 to the nearest ten.

100a. grams
Choose the better unit to use to measure the mass of a baseball hat:
a. grams
b. kilograms

2001:55
Look at the clock  what time does it show? Write the digital time.

200305
Solve: 437  132

200200
Round 194 to the nearest hundred.

200b. liters
Choose the better unit to use to measure the liquid volume of a swimming pool:
a. milliliters
b. liters

300Jenna started her jog at 4:02 p.m.
Jenna got home from her jog at 4:47 p.m. She jogged for 45 minutes. What time did she start her jog?

300326 g
Solve: 562 g  236 g

3001,200
Round 1,234 to the nearest hundred.

300Emma needs ten 1 gram weights.
Emma puts a 10 gram weight on a pan balance. How many 1 gram weights does she need to balance the scale?

400Camille put her cookies on a plate at 2:32 p.m.
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?

400319 g
Emma's oranges, apples, and grapes weigh 968 g. Together the oranges and apples weigh 649 g. How much do the grapes weigh?

400830 milliliters
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.

400Emma needs ten 10 g weights.
Emma puts a 100 gram weight on a pan balance. How many 10 gram weights does she need to balance the scale?

500The video game ended at 7:28 p.m.
A video game was started at 7:01 p.m. It ended 27 minutes later. What time did the game end?

500Emma is on her trip for 57 minutes.
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?

500a. 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.
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?

500The Dranger family used 671 liters of water in three days.
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?
