1.NBT.C.5 Worksheets

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 can help students practice this Common Core State Standards skill.

Worksheets

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
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
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

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