Continue Number Sequences through One Hundred

Supplied materials

• Paper and a pencil; drawing and spoken explanations are welcome. An adult may read directions and options aloud.
• Supplied worked-case record: Start at 8 and take three steps: 9, 10, 11.
• All quantities and shape descriptions are supplied in the worked example and questions; no purchase or personal information is needed.
• Supplied number strip (an adult may read it aloud): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100.

Learn the idea

You do not always need to start at one. A counting sequence keeps the same order wherever you join it. The next number is one more than the number just said. Keep your place when a sequence passes ten. For larger starts, use the supplied 1–100 number strip with an adult reading unfamiliar names. Counting by tens follows 10,20,30,40,50,60,70,80,90,100: each new step adds ten.

Say the supplied starting number. Take one counting step for each empty space and record the new word or numeral. Check by counting the short section again, without restarting the whole sequence.

Point to the starting numeral before moving. The starting number is not a new step. Use one marked jump for each requested step; a tens step crosses ten one-unit spaces.

1. Use the supplied number strip; mark one new position for every requested step of the stated size.
2. Follow the worked example. Point to each number or shape feature and say what it tells you.
3. Say the supplied starting number.
4. Try the question and then the three practice questions. Check your answers and explain any change you make.

Check your reasoning

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Take it further

With adult read-aloud support, count by tens: 10,20,30,40,50,60,70,80,90,100. Then count from 95: 96,97,98,99,100. Expected: stop at one hundred with the stated steps.

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