Skip to content
LessonPrint

Skip Counting Within 1000

A 45-minute Grade 2 lesson on counting within 1000 and skip counting by fives, tens and hundreds, where the hard part is every boundary the count crosses.

Skip Counting Within 1000 is a free 45-minute Grade 2 maths lesson plan for Common Core standard 2.NBT.A.2 — count to 1000 and skip count by 5s, 10s and 100s. It is timed across 5 sections, gives the exact wording to use where the wording carries the mathematics, names 3 misconceptions with the teaching move that addresses each, and ends with an exit ticket and a printable worksheet with its answer key.

Grade:
Grade 2
Length:
45 minutes
Standard:
2.NBT.A.2

Grade 2 · Number & Operations in Base Ten

2.NBT.A.2

Count within 1000; skip-count by 5s, 10s, and 100s.

Objective

Students will be able to count within 1000 and skip count by 5s, 10s and 100s from any starting point.

Students are successful when they can

  • Skip counts by tens across a hundred boundary: 180, 190, 200.
  • Skip counts by hundreds to 1000.
  • Says which digit changes for each kind of skip count.

What you need

  • Base ten materials including hundred flats
  • Number lines marked in tens and in hundreds
  • A 1000 chart or a set of hundred squares
  • The printable practice sheet linked at the end of this plan

The lesson

Warm-up — by tens from anywhere

5 min
  1. Skip count by tens from 30, then from 37, then from 84.
  2. Starting off a decade is where the pattern becomes visible rather than recited.

Teach — which digit is doing the work

13 min
  1. Count by tens from 150 on a number line, out loud, to 210.
  2. Stop at 190 and ask what comes next before saying it. The tens digit is full, so the hundreds digit moves.
  3. Write the sequence and circle the digit that changed each time.
  4. Now count by hundreds from 200 to 900, laying out a hundred flat each time. Only the hundreds digit moves.
  5. Then by fives from 70 to 120, and notice that the digit changing alternates.
  6. Ask which is easiest and why. Hundreds, because only one digit ever moves.
“Skip counting is not a new chant. Adding ten changes the tens digit, until it cannot, and then it changes the hundreds instead.”

Guided practice — cross the boundary

12 min
  1. Pairs draw a start card and a step card and count on eight terms.
  2. Every start card is chosen so the count crosses a hundred boundary at least once.
  3. The partner checks against a number line and stops them at any slip.

Independent practice

12 min
  1. Students complete a skip counting page.
  2. Errors clustered at 190 to 200 or 495 to 500 are boundary errors and need the base ten materials rather than more sequences.

Close

3 min
  1. Count by hundreds from 400 as a class, then by tens from 480.
  2. The second one crosses 500 and is the harder of the two.

What goes wrong, and why

Each of these is a reasoning error rather than carelessness. The fix addresses the reasoning.

Counts 180, 190, 100.

Why: The tens digit is full and something must change; the pupil resets the tens to zero but does not carry into the hundreds, or reads the new number from the hundreds alone.

Fix: Build it. Nineteen ten rods plus one more makes twenty rods, which trade for two hundred flats. The trade is what the digit change records.

Skip counts by tens correctly from 40 but not from 47.

Why: The count from a decade is a memorised chant. From 47 there is no chant, and the underlying operation — add ten — has not been separated from it.

Fix: Start every skip count from a non-decade number for a week. The chant is unavailable and the operation has to be used.

Counts by fives as 5, 10, 15 but cannot continue past 100.

Why: The fives sequence was learned to 100 as a list. Nothing about the list says how it continues.

Fix: Show the pattern in the ones digit — always 0 or 5 — and count from 95 across the boundary a few times. The pattern continues, the list did not.

If they are not there yet

  • Skip count by tens only, and only within 200, until crossing one boundary is secure.
  • Use a marked number line so the jumps are visible and equal rather than remembered.

If they finish early

  • Skip count backwards by tens and hundreds from 1000.
  • Skip count by twenty-fives, which introduces a new pattern with the same structure.
  • Predict whether a given number will appear in a count by fives from 3.

Exit ticket

Continue: 270, 280, 290, ___, ___. Then continue: 300, 400, ___, ___.

What to look for: 300, 310 and 500, 600. '200' or '2100' after 290 is the boundary error; the hundreds count is usually secure and is there as a contrast.

Printable practice for 2.NBT.A.2

Free to print and copy, answer key included. Each sheet can generate a fresh set of problems for a retake.

Questions about Skip Counting Within 1000

How long does the Skip Counting Within 1000 lesson take?

45 minutes, split across 5 timed sections: warm-up 5 min, teach 13 min, guided practice 12 min, independent practice 12 min, close 3 min. The minutes are stated per section and add up to the stated length, so the plan can be cut or extended at a section boundary rather than abandoned halfway.

Which standard does Skip Counting Within 1000 teach?

CCSS.MATH.CONTENT.2.NBT.A.2 — 2.NBT.A.2, Number & Operations in Base Ten for Grade 2: “Count within 1000; skip-count by 5s, 10s, and 100s.” In plain terms, count to 1000 and skip count by 5s, 10s and 100s.

What do I need to teach this lesson?

Base ten materials including hundred flats, number lines marked in tens and in hundreds, a 1000 chart or a set of hundred squares and the printable practice sheet linked at the end of this plan. Everything listed is either ordinary classroom equipment or a free printable from this site — there is nothing to buy and nothing to prepare beyond photocopying.

What mistakes should I expect in this lesson?

Three, each a reasoning error rather than carelessness: counts 180, 190, 100; skip counts by tens correctly from 40 but not from 47 and counts by fives as 5, 10, 15 but cannot continue past 100. The plan gives the thinking behind each one and the teaching move that addresses the thinking rather than the symptom.

How do I know whether the lesson worked?

The exit ticket asks: “Continue: 270, 280, 290, ___, ___. Then continue: 300, 400, ___, ___.” 300, 310 and 500, 600. '200' or '2100' after 290 is the boundary error; the hundreds count is usually secure and is there as a contrast. That tells you whether the class needs a reteach or a thirty-second conversation before you plan tomorrow.

Is there a worksheet to go with Skip Counting Within 1000?

Yes — 2 printable 2.NBT.A.2 worksheets, linked at the end of the plan and free like the rest of the site. Each one comes with an answer key and 25 versions, so the practice after the lesson can be a different paper on every desk.

Is Skip Counting Within 1000 free to use?

Yes. The plan, its printables and their answer keys are free to read, print and photocopy for your own class, with no account and no email capture. It was last reviewed on 5 September 2026. Please do not resell it or republish it as your own.

Last reviewed 2026-09-05. Aligned to 2.NBT.A.2 of the Common Core State Standards for mathematics.