Patterns with Big Numbers

Patterns of +25, +100, −10 in the hundreds.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 55

Patterns work with big numbers too. Look: 875, 900, 925, 950. What's the rule?
Each number is 25 more. The rule is add 25. After 950 comes 975, then 1,000!
Watch the hundreds change in this one: 470, 480, 490, 500, 510. Add 10 crosses into a new hundred!
Shrinking patterns cross hundreds too: 630, 620, 610, 600, 590. The rule is take away 10.
Will 700 be in the pattern 300, 400, 500? Yes! Keep adding 100: 600, then 700.

Georgia's K-12 Mathematics Standards:

2.PAR.4.1 — Identify, describe, and create a numerical pattern resulting from repeating an operation such as addition and subtraction.