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

Common Core Identifier: 1.NBT.2a / Grade: 1

Curriculum: Number And Operations In Base Ten: Understand Place Value.

Detail: 10 can be thought of as a bundle of ten ones - called a "ten." b.

23 Common Core State Standards (CCSS) aligned worksheets found:
For each picture, tell how many more counters are needed to make ten.

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This mini-book is a fun way for students to practice with ten-frames and addition skills. Cut out the pages and assemble, then fill out the ten-frames and solve the math fact.

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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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Your students will review place value, identify the number of tens and ones in a 2-digit number. Add zero to single-digit numbers. Identify a polygons, including hexagons. Count up from 2-digit numbers.

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This printable uses ten-frames to help students find the right number sentence and use their addition skills to determine the sum of each math fact.

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On this worksheet, students will use the number sentence to draw the counters in the ten-frame and find the sum.

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Use scissors to cut out the ten-frame boxes on the bottom of the worksheet and glue them to the matching number sentence above.

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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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Write the 2-digit number represented by each set of place value blocks.

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The first part of this worksheet has students using the counters in the ten-frame to find the number sentence. The second part uses the number sentence to fill in the ten-frame.

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This printable has 15 pennants that can be cut out and colored. Then solve the ten-frame addition fact. Lastly, these pennants can be strung up on a rope or string to hang in the classroom.

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Cut out the number boxes and paste them next to the correct place value blocks.

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Review basic addition and subtraction facts. Practice breaking a 2-digit number up into tens and ones. Compare numbers, using the phrases

*less than*and*greater than*. Answer a question using a pictograph.Level:

Read each word problem to fill out the ten-frame, write out the math fact, and find them sum.

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Tell how many tens and ones are shown. Then write the number.

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This worksheet has ten-frames with red and white counters all adding up to ten. Students will find the missing number to complete the math fact.

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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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Draw the correct number of counters in each set of double frames.

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Write two addition and two subtraction facts shown by each double ten frame.

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How many counters are in the frames? This worksheet features double 10-frames with numbers up to 20.

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How many more counters are needed to make 20 in each group?

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Use this double ten frame (20-frame) template for your manipulative math lessons.

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