How it works
Skip counting by 25 takes 20 jumps to reach 500. Each square here counts 5, so all 20 stops fit in 10 rows. Every jump, such as 75 + 25 = 100, is listed further down with its stop in quarters.
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Four endings, two columns
Counting by 25 has only four endings: 25, 50, 75, 00. After 4 jumps the count has grown by 100: the same endings come round with a new hundreds digit. Each square counts 5, so a row is worth 50 and holds 2 stops. The lit squares make two straight columns, the 5th and the 10th.
Quarters in the notes
The list All 20 jumps, further down, gives each stop, such as 75 + 25 = 100, in quarters. Numbers on the chart shortens the chart to 300 or to 100, the 4 stops of one dollar. New counting strip deals 7 stops with gaps, none past 275: type what is missing and press Check.
- Count quarters as each one lands: 25, 50, 75, 100. Slide every fourth coin up for a finished dollar.
- After every 75 the count crosses a hundred: 75 to 100, 175 to 200. Say those jumps alone first.
- Test a long number by its last two digits: 1,350 ends in 50 and is a stop. 1,360 is not.
Questions and answers
What numbers do you say when you count by 25 to 500?
25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350, 375, 400, 425, 450, 475 and 500. That is 20 stops, and the chart that ends at 300 holds the first 12.
Why does this chart count in fives and not in ones?
A chart of ones would need 500 squares to reach the 20th stop. With each square counting 5, the count fits in 10 rows. Every stop of the 25s is also a stop of the 5s: see the count by 5 chart.
How does counting by 25 help with money?
A quarter is worth 25 cents, so counting quarters is this count: 4 make a dollar, 8 make 2 dollars and 20 make 5 dollars. Each jump note gives the amount, such as 11 quarters for $2.75.
What can I print for the 25s?
Print 6 counting strips, under the strip, gives six strips of the 25s, none past 275, and a key. Print the chart gives the chart of fives alone. Full rows are the sheet type Count by 25s to 500 on skip counting worksheets.