# 1st Grade Common Core: 1.NBT.2c

Common Core Identifier: 1.NBT.2c / Grade: 1
Curriculum: Number And Operations In Base Ten: Understand Place Value.
Detail: 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).
8 Common Core State Standards (CCSS) aligned worksheets found:
Tell how many tens and ones are in each number.
Level:
Tell how many tens and ones are shown. Then write the number.
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Cut out the number boxes and paste them next to the correct place value blocks.
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Show students how to write a two-digit number in ways other than standard form. The page shows an example of a number in written form, expanded form, and expanded notation.
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Write the 2-digit number represented by each set of place value blocks.
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Roll two dice and make a 2-digit number. Then write the number in expanded form. After that, draw a sketch of place value blocks that make the number.
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Match the number box on the bottom of the page to the correct tens and ones blocks.
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In this set, kids will practice skip counting by 100s, solving word problems, dividing shapes in half, reading a line plot, and telling time (half hour increments) on an analog clock.
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