Crack the Code Math Worksheets Within 20|Addition, Subtraction & Missing Number

Description

Crack the Code Math Worksheets help students practice addition, subtraction, missing number, and true or false within 20 using picture math. Perfect for Kindergarten and 1st Grade math centers, morning work, homework, and review activities.

This resource includes picture addition, subtraction, add 3 numbers (make 10), mixed operations, missing number, and true or false worksheets. Students use picture values to solve equations, build number sense, and practice math in a fun and engaging way.

These worksheets are great for math centers, independent work, early finishers, homework, review, and sub plans.

This resource includes:

Crack the Code Addition Within 10, 15, 20 (4 worksheets)
Add 3 Numbers – Make 10 (2 worksheets)
Crack the Code Subtraction Within 10, 15, 20 (3 worksheets)
Add & Subtract Mixed (1 worksheet)
Missing Number (3 worksheets)
True or False (2 worksheets)
Answer Keys

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Crack the Code Math Worksheets Within 20|Addition, Subtraction & Missing Number

Name: Crack the Code Math Worksheets Within 20|Addition, Subtraction & Missing Number
Brand: Tiny dot studio
SKU: 15924331
Price: 2.50 USD
Availability: InStock

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$2.50

Highlights

Digital downloads

PDF

Grades

K - 1st

Subjects

Basic Operations, Numbers, Other (Math)

Standards

CCSS1.OA.C.6

CCSS1.OA.D.7

CCSS1.OA.D.8

Description

These worksheets are great for math centers, independent work, early finishers, homework, review, and sub plans.

This resource includes:

Crack the Code Addition Within 10, 15, 20 (4 worksheets)
Add 3 Numbers – Make 10 (2 worksheets)
Crack the Code Subtraction Within 10, 15, 20 (3 worksheets)
Add & Subtract Mixed (1 worksheet)
Missing Number (3 worksheets)
True or False (2 worksheets)
Answer Keys

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.

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Questions & Answers

Standards

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

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).

CCSS1.OA.D.7

Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

CCSS1.OA.D.8

Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ▯ - 3, 6 + 6 = ▯.