Lesson 16 First Grade: Find the Unknown Number

What others say

"I send this home as extra practice for my students who may be struggling with the skill in class. It allows them to get extra practice. "

Lindsay S.

Description

Assess the quality of my work by downloading Lesson 1: Count on to Add for FREE! If you love it, come back for more.

No more sifting through worksheets to find the best match.
Improve your relationship with parents by keeping them in-the-loop with optional homework packets.
Give your students much-needed extra practice with iReady® Classroom Math.

Find the Unknown Number

This includes:

Four double-sided worksheets which align to each day's session in Lesson 16. These can be sent home as homework, given in-class as extra practice, or used in small groups to reinforce concepts.
Four exit tickets which align to each day's session.
8 fluency sheets practicing mixed addition and subtraction within 10 and number bonds with 10 in any position. These can also can be used for Aimsweb™ Benchmark Testing prep.

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Lesson 16 First Grade: Find the Unknown Number

Name: Lesson 16 First Grade: Find the Unknown Number
Brand: The Mint Chip Teacher
SKU: 10558677
Price: 3.00 USD
Availability: InStock
Rating: 5 (2 reviews)

Rated 5 out of 5, based on 2 reviews

5.0 (2 ratings)

The Mint Chip Teacher

180 Followers

$3.00

Highlights

Grades

1st

Subjects

Basic Operations, Math, Math Test Prep

Standards

CCSS1.OA.A.1

CCSS1.OA.B.4

CCSS1.OA.C.6

What others say

"I send this home as extra practice for my students who may be struggling with the skill in class. It allows them to get extra practice. "

Lindsay S.

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BUNDLE First Grade Math Lessons 16, 17, 18, 19, and 20

Assess the quality of my work by downloading Lesson 1: Count on to Add for FREE! If you love it, come back for more.This bundle aligns with iReady® Classroom Math, but can be used with ANY math curriculum. No more sifting through worksheets to find the best match.Improve your relationship with paren

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BIG YEAR-LONG BUNDLE First Grade Math Lessons 1-35

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Description

Assess the quality of my work by downloading Lesson 1: Count on to Add for FREE! If you love it, come back for more.

No more sifting through worksheets to find the best match.
Improve your relationship with parents by keeping them in-the-loop with optional homework packets.
Give your students much-needed extra practice with iReady® Classroom Math.

Find the Unknown Number

This includes:

Four double-sided worksheets which align to each day's session in Lesson 16. These can be sent home as homework, given in-class as extra practice, or used in small groups to reinforce concepts.
Four exit tickets which align to each day's session.
8 fluency sheets practicing mixed addition and subtraction within 10 and number bonds with 10 in any position. These can also can be used for Aimsweb™ Benchmark Testing prep.

If you L♡VE your download, please give it ⭐⭐⭐⭐⭐ and follow me! ◡̈

Visit my website, www.mintchipteacher.com, to get updates, like sales, and to sign up for freebies!

This store is not affiliated with, nor has been authorized, sponsored, or otherwise approved by Curriculum Associates®.

Report this resource to TPT

Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

5.0

Rated 5 out of 5, based on 2 reviews

2
ratings

All verified TPT purchases

Great IReady aligned practice!

Rated 5 out of 5

May 8, 2026

Met expectations

Standards-aligned

I send this home as extra practice for my students who may be struggling with the skill in class. It allows them to get extra practice.

Lindsay Saunders

(TPT Seller)

293 reviews • Tennessee

Grades taught: 1st

Great resource!

Rated 5 out of 5

January 6, 2026

This resource is great for providing extra practice and small group instruction for my students.

Kaitlin H.

168 reviews • Alabama

Grades taught: 1st

Questions & Answers

Standards

to see state-specific standards (only available in the US).

CCSS1.OA.A.1

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

CCSS1.OA.B.4

Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.

CCSS1.OA.C.6

Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).