North Carolina - Grade 1 - Math - Numbers and Operations in Base Ten - Subtract Multiples of 10 - NC.1.NBT.6

Description

Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90, explaining the reasoning, using: • Concrete models and drawings • Number lines • Strategies based on place value • Properties of operations • The relationship between addition and subtraction

• State - North Carolina
• Standard ID - NC.1.NBT.6
• Subjects - Math Common Core
• Grade - 1

Keywords

• Math
• North Carolina grade 1
• Numbers and Operations in Base Ten

More North Carolina Topics

Measure lengths with non-standard units. • Express the length of an object as a whole number of non-standard length units. • Measure by laying multiple copies of a shorter object (the length unit) end to end (iterating) with no gaps or overlaps.

Represent and solve addition and subtraction word problems, within 20, with unknowns, by using objects, drawings, and equations with a symbol for the unknown number to represent the problem, when solving: • Add to/Take from-Change Unknown • Put together/Take Apart-Addend Unknown • Compare-Difference Unknown

Compare two two-digit numbers based on the value of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

NC.1.OA.4 Solve an unknown-addend problem, within 20, by using addition strategies and/or changing it to a subtraction problem. NC.1.OA.6 Add and subtract, within 20, using strategies such as counting on, making ten, decomposing a number leading to a ten, using the relationship between addition and subtraction, using a number line, and creating equivalent but simpler or known sums. NC.1.OA.9 Demonstrate fluency with addition and subtraction within 10.

NC.1.OA.7 Apply understanding of the equal sign to determine if equations involving addition and subtraction are true. NC.1.OA.8 Determine the unknown whole number in an addition or subtraction equation involving three whole numbers.

Here is the skill that North Carolina requires you to master

• Grade Level 1
• State Test End-of-Grade test
• State Standards North Carolina’s Standard Course of Study
• Subject Math
• Topic Name Subtract Multiples of 10
• Standard ID NC.1.NBT.6
• Description
Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90, explaining the reasoning, using: • Concrete models and drawings • Number lines • Strategies based on place value • Properties of operations • The relationship between addition and subtraction