Jump by Ten: Ten More and Ten Less

About This Resource

A complete Grade 1 math pack on finding ten more and ten less than a number up to 100. Children use a hundred chart, notice that the tens digit changes and the ones digit stays the same, continue counting patterns by tens from any number and solve simple word problems. Includes slides with worked examples, a lesson plan, worksheet, quiz, homework, flashcards, a rubric and answer keys.

Overview

Children discover a useful pattern: when we add ten, the tens digit goes up by one and the ones digit stays the same (34 → 44); when we take away ten, the tens digit goes down by one (34 → 24). On a hundred chart, ten more is the number just below and ten less is the number just above. Children find ten more and ten less with base-ten sticks and the hundred chart, continue patterns such as 7, 17, 27, 37, explain what changes and what stays the same and solve short word problems about collecting and giving away groups of ten.

Resource Details

Subject: Math
Topic: Ten More and Ten Less
Category: Number Sense
File Type: PDF
File Size: 271.3 KB
Published: 13 Nov 2026
Downloads: 0

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Grade 1 math (ages 6–7) 45 minutes Place value mental math number patterns reasoning

Learning Objectives

Find ten more and ten less than a number to 100.
Explain which digit changes when we add or take away ten.
Continue counting patterns by tens from any number.

How to Use This Resource

Start with the slides: show 34 with base-ten sticks. Add one more ten and ask: "What number is it now?"
Use a hundred chart to model jumping down (ten more) and up (ten less), then do worksheet activities 1 and 2 together.
Children complete activities 3 to 6, then use the quiz and take home the homework page.

Classroom Activity Ideas

Hundred chart hop: children put a counter on a number and hop down for ten more or up for ten less.
Stick swap: children show a number with ten-sticks and ones, then add or remove one stick.
Ten more chant: start at any number and count on by tens together (6, 16, 26, 36…).

Differentiation

Support: use base-ten sticks and a hundred chart for every question and keep numbers between 20 and 80. Challenge: children find twenty more or twenty less and explain the pattern.

Assessment

Use the worksheet and quiz to check ten more and ten less. Use the rubric while children explain their thinking with the hundred chart.

Teacher Tips

Some children count on ten ones every time. Encourage them to look at the tens digit instead and check with the hundred chart. Watch numbers near 100 and below 10, such as ten less than 15.

What's Included

10-page printable PDF lesson pack: teacher lesson plan with timings, materials and differentiation
Key vocabulary list (6 words with meanings and examples)
Student worksheet (6 activities)
Quiz / assessment (3 parts)
Homework practice page
Printable flashcards: 6 A5 picture cards (separate PDF)
Assessment rubric (4 levels)
Lesson slides (editable PowerPoint)
Editable Word version of all student pages
Complete answer key (also as a separate PDF)