1.NBT.C.5 Worksheets, Workbooks, Lesson Plans, and Games

CCSS.MATH.CONTENT.1.NBT.C.5

:
"Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used."

These worksheets, games, and lesson plans can help students practice this Common Core State Standards skill.

Worksheets

Mastering Place Value: Adding & Subtracting 10
Worksheet
Mastering Place Value: Adding & Subtracting 10
Help your students use their knowledge of place value to add or subtract 10. By understanding how numbers are made of tens and ones, students learn how to add and subtract 10 with ease.
1st grade
Math
Worksheet
Adding 10
Worksheet
Adding 10
Your students have been plugging away at their math skills all year. Now it's time to put those skills to the test! Use this math assessment to check in on your students’ abilities to add 10 to two-digit numbers.
1st grade
Math
Worksheet
Hundreds Chart Challenge
Worksheet
Hundreds Chart Challenge
Has your little math whiz mastered the hundreds chart? Give him a fun challenge with these fill-in-the blank pieces of the chart.
1st grade
Math
Worksheet
Patterns: Driving in All Directions
Worksheet
Patterns: Driving in All Directions
Grab a number chart that goes up to a hundred and fill in the numbers surrounding the ones in the green boxes on this math and patterns worksheet.
1st grade
Math
Worksheet

Lesson Plans

Math Mind Magic
Lesson plan
Math Mind Magic
Every student can be a magician after this lesson in mentally adding and subtracting by 10. No previous magic training required!
1st grade
Math
Lesson plan
The Ten Monster
Lesson plan
The Ten Monster
Here comes the Ten Monster! Get ready to learn about subtracting tens in this hands-on lesson.
1st grade
Math
Lesson plan

Workbooks

No workbooks found for this common core node.

Games

Multiples of 10 Game Show
Game
Multiples of 10 Game Show
Kids practice adding and taking away 10 in this silly game show.
1st grade
Math
Game
Addition Demolition
Game
Addition Demolition
Kids sharpen mental addition skills with this silly construction math game.
1st grade
Math
Game

Exercises

No exercises found for this common core node.

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