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Write the times and the differences in time for each pair of clocks below (the first one is done for you). | |||

Time is: | Time is: | Time is: 2:00 | Time is: 2:45 |

Time difference is:15 minutes | Time difference is: 45 minutes | ||

Time is: 3:00 | Time is: 3:30 | Time is: 7:00 | Time is: 7:45 |

Time difference is: 30 minutes | Time difference is: 45 minutes | ||

Time is: 7:15 | Time is: 7:45 | Time is: 9:45 | Time is: 10:00 |

Time difference is: 30 minutes | Time difference is: 15 minutes | ||

Write the differences between the two times. | |||

5:15 p.m. and 5:30 p.m. 15 minutes | 1:15 p.m. and 1:45 p.m. 30 minutes | ||

10:15 a.m. and 11:00 a.m. 45 minutes | 9:15 a.m. and 10:30 a.m. 1 hour 15 minutes |

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## Related Resources

The various resources listed below are aligned to the same standard, (4MD01) taken from the CCSM (Common Core Standards For Mathematics) as the Time Worksheet shown above.

*Know relative sizes of measurement units within one system of units including km, m, cm; kg, g; lb, oz.; l, ml; hr, min, sec. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table. For example, know that 1 ft is 12 times as long as 1 in. Express the length of a 4 ft snake as 48 in. Generate a conversion table for feet and inches listing the number pairs (1, 12), (2, 24), (3, 36), … *

### Worksheet

#### Durations

- Differences in Time (2 of 4): 5 minute intervals (e.g. 5:05 p.m. and 5:20 p.m.)
- Differences in Time (3 of 4): On the quarters (e.g. 7:15 a.m. and 9:45 p.m.)
- Differences in Time (4 of 4):5 minute intervals (e.g. 8:55 a.m. and 12:35 p.m.)

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

*Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit*

- Measurement Word Problems Lesson (From Example/Guidance)
- Money Word Problems Lesson (From Example/Guidance)
- Calculating Areas – Rectangles (From Worksheet)
- Calculating Areas – Rectangular Shapes (From Worksheet)
- Calculating Surface Areas e.g. of Rectangular Prisms (From Worksheet)
- Distance Word Problems Worksheet – Converting between mm, cm, m, & km (From Worksheet)
- Metric Mass Word Problems Worksheet – Converting between mg, g, & kg (From Worksheet)
- Word Problems: Decimals Worksheet – with addition, subtraction, multiplication, & division (From Worksheet)
- Word Problems: Multi-step (From Worksheet)
- Word Problems: Money With Fractions (From Worksheet)
- Time Word Problems Worksheet – Elapsed time and converting between minutes and hours (From Worksheet)
- Converting Metric Units of Measurement – Post-assessment (10 questions) (From Worksheet)
- Word Problems: Money – Post-assessment (8 questions) (From Worksheet)