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Telling Time to the Hour and Half Hour: Grade 1 Math Worksheet Answer Key – PDF Download

    Telling Time to the Hour and Half Hour – Grade 1 math worksheet answer key
    Use this answer key to check each problem. Every answer explains where the hour hand and minute hand point. Pictures of clocks and digital times help children see why each answer is right. Read the steps aloud together.
    Grade 1Common Core: 1.MD.B.3

    Problem 1: Name the hands

    The short hand tells the hour.

    The shorter hand is the hour hand.

    Problem 2: Read the hour

    The minute hand points to 12. The hour hand points to 4.

    1234567891011124:00
    The digital clock shows the same time.

    The time is 4:00, or 4 o’clock.

    Problem 3: Read the hour again

    The minute hand points to 12. The hour hand points to 9.

    The time is 9:00.

    Problem 4: Half past six

    The minute hand points to 6, so it is half past. The hour hand is between 6 and 7, so the hour is 6.

    1234567891011126:30
    The digital clock shows the same time.

    The time is 6:30.

    Problem 5: Half past one

    The minute hand points to 6. The hour hand is between 1 and 2, so the hour is 1.

    The time is 1:30.

    Problem 6: Find 8:30

    8:30 needs the minute hand on 6 and the hour hand between 8 and 9. Clock A and Clock C have the minute hand on 12.

    The answer is Clock B.

    Problem 7: Find 10:00

    10:00 needs the minute hand on 12 and the hour hand on 10. Clock A has the minute hand on 6. Clock B has the hour hand on 11.

    The answer is Clock C.

    Problem 8: Minute hand at 3:00

    On the hour, the minute hand points straight up.

    The minute hand points to 12.

    Problem 9: Minute hand at 7:30

    At half past, the minute hand points straight down.

    The minute hand points to 6.

    Problem 10: Hour hand at 2:30

    At half past 2, the hour hand has moved halfway from 2 to the next number.

    It is between 2 and 3.

    Problem 11: O'clock or half past

    The minutes are 30, so half an hour has passed.

    The answer is half past 5.

    Problem 12: Say it in words

    The hour is 12 and the minutes are 30.

    The time is half past 12.

    Problem 13: Hands to digital

    The minute hand on 12 means o’clock. The hour is 8.

    The time is 8:00.

    Problem 14: Lunch time

    The hour is 11. Half past means :30.

    The time is 11:30.

    Problem 15: Which is later

    Both times are in the 4 o’clock hour. Half an hour after 4:00 is 4:30.

    The later time is 4:30.

    Problem 16: Order the times

    2:00 comes first. Half an hour later is 2:30. One more half hour later is 3:00.

    The order is 2:00, 2:30, 3:00.

    Problem 17: Soccer practice

    The minute hand points to 6. The hour hand is between 5 and 6, so the hour is 5.

    1234567891011125:30
    The digital clock shows the same time.

    Practice starts at 5:30.

    Problem 18: Ethan's morning

    Clock A: the minute hand is on 12 and the hour hand is on 7, so it is 7:00. Clock B: the minute hand is on 6 and the hour hand is between 7 and 8, so it is 7:30.

    7:30 is half an hour after 7:00. Clock B shows the later time.

    Problem 19: Liam's mistake

    At half past, the hour hand is halfway between two numbers. It has not reached 8. The hour is the smaller number, 7.

    1234567891011127:30
    The correct time.

    The correct time is 7:30.

    Problem 20: Mei's mistake

    The long hand is the minute hand. It points to 6, which means half past. The short hour hand is between 3 and 4, so the hour is 3.

    1234567891011123:30
    The correct time.

    The correct time is 3:30.

    Problem 21: Priya's afternoon

    Clock A is 1:00. Clock B is 1:30. Clock C is 2:30.

    2:30 is after 1:30, and 1:30 is after 1:00. The latest time is 2:30.

    Problem 22: Same time

    Half past 4 means the hour is 4 and the minutes are 30.

    That is written 4:30. The answer is yes, they go at the same time.

    Problem 23: Aisha's time

    The hour is 9. Half past means :30.

    1234567891011129:30
    Half past 9.

    The time is 9:30. The minute hand points to 6.

    Problem 24: Hour hand halfway

    The hand is between 9 and 10, so the hour is 9. The minute hand on 6 means half past.

    The time is 9:30.

    See every chapter on the Grade 1 math page.

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