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Adding 2 Digit Numbers to 100•
Addition

Adding Single Digits to Two Digit Numbers (With Regrouping) WORKSHEET

Suitable for Grades: 1st Grade, 2nd Grade
CCSS: 1.NBT.C.4, 2.NBT.B.5
CCSS Description: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Adding Single Digits to Two Digit Numbers (With Regrouping) WORKSHEET DESCRIPTION

This worksheet is designed to give students practice of adding ones to two digit numbers mentally and using formal methods while also providing concrete representatives of these additions.

Section A uses base 10 blocks as visual aids for addition problems. Students are asked to complete additions of single-digit numbers to two-digit numbers using these blocks. This approach helps students understand the concept of regrouping in a visual and tangible way.

Then in section B, students will mentally add a single digit to a two digit number as they complete three addition wheels, where the number at the center is added to the number outside of it.

Section C introduces a formal method for addition as students complete a series of column additions.

Adding Single Digits to Two Digit Numbers (With Regrouping) Worksheet Suitable for 1st and 2nd Grade Students

Frequently Asked Questions

This adding single digits to two digit numbers (with regrouping) worksheet is designed for students in 1st Grade and 2nd Grade and aligns with Common Core State Standards.