Unit 12 Review

How many minutes passed from the time shown on the first clock to the time shown on the second clock?

• 3

• 4

• 14

• 20

Maria’s class arrives in the lunchroom at 11:18 a.m. They leave 25 minutes later. Then they spend 30 minutes at recess before arriving back in their classroom. At what time do they arrive back in their classroom?

• 11:43 a.m.

• 11:48 a.m.

• 12:13 p.m.

• 1:31 p.m.

After jumping rope for 15  minutes, Jan took a break. If Jan took a break at 3:05 p.m., at what time did she start jumping rope?

• 2:55 p.m.

• 2:50 p.m.

• 3:20 p.m.

• 3:50 p.m.

Ron walks his dog each afternoon at the time shown on the clock.

• 4:35 a.m.

• 4:35 p.m.

• 7:23 a.m.

• 7:23 p.m.

What time is shown on the clock?

The number line shows that Ray started stirring soup at 11:57 a.m.

He stopped stirring at 12:04 p.m. How many minutes did Ray stir the soup?

The students in robotics class spent 25 minutes testing their robots. They finished at 4:00 p.m. At what time did the students start testing their robots?

Joe is hatching eggs for science class. He will take pictures of the eggs every 15  minutes once they begin to hatch. Joe takes the first picture at 9:50 a.m.

Part A: At what time will Joe take the second picture?

Joe is hatching eggs for science class. He will take pictures of the eggs every 15  minutes once they begin to hatch. Joe takes the first picture at 9:50 a.m.

Part B:At what time will Joe take the fourth picture?

At 8:00 a.m., Ruth begins taking flowers to her friends. She spends 15 minutes taking flowers to Zoe. She spends 25 minutes taking flowers to Alice. Ruth returns home 15 minutes later.

Part A:At what time does Ruth finish taking flowers to her friends?