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Adrianne Gronnert

Comparing 2-digit Numbers

Grades: 3rd Grade, 2nd Grade, 1st Grade
Subjects: Math
Standards: Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <. (1.NBT.B.3.), Model with mathematics. (4), Understand 10 as a bundle of ten ones and that the two digits of a two-digit number represent amounts of tens and ones. (1.NBT.B.2.)

Student Instructions

Click the :link to watch the video and learn about comparing numbers with Math Monster. Then, look at the numbers on the student template. Use the arrow to move the base ten pieces and build the numbers on each side. Use the arrow to click the flexcard and choose <, >, or = to make the equation true. Click the check when you complete all pages in the activity.

Teacher Notes (not visible to students)

You can find more math lessons here: https://www.youtube.com/playlist?list=PLZ-dFewIqnkzA2fD9orT3n4yCUl-a56cW This lesson aligns with the following 1st grade math standards: Understand place value. CCSS.Math.Content.1.NBT.B.2 Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases: CCSS.Math.Content.1.NBT.B.2.a 10 can be thought of as a bundle of ten ones — called a "ten." CCSS.Math.Content.1.NBT.B.2.b The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. CCSS.Math.Content.1.NBT.B.2.c The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones). CCSS.Math.Content.1.NBT.B.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.

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