Five pages on the forms of a three-digit number. Page 1 starts with base-ten blocks: write the number, then its expanded form, then the same for numbers alone; a place with a zero is left out (506 = 500 + 6). Page 2 turns expanded forms back into numbers, some written out of order (7 + 200 + 50) or with a place missing (600 + 9), then asks for the missing part of an expanded form. Page 3 reads number words such as "five hundred seven" and writes the number; page 4 does the reverse, with a word bank of every word needed on both pages. Page 5 breaks a hundred into ten tens or a ten into ten ones, so 235 is also 1 hundred 13 tens 5 ones, 2 hundreds 2 tens 15 ones and 23 tens 5 ones; students then circle every card that shows a number. Each page starts with a worked example.
Page 2's out-of-order sums are worth a minute of talk: does 7 + 200 + 50 make 725 or 257? Have students sort the parts into a place value table first. Before page 5, build 235 with blocks and trade a flat for ten rods: the number did not change, only the way it is shown.
Write a number on a sticky note and say it three ways: "three hundred forty-two", "300 + 40 + 2", "3 hundreds 4 tens 2 ones". Read prices and page numbers aloud the same way.
This pack supports the following Common Core State Standards for Mathematics:
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A 5-page 2nd grade pack for reading and writing numbers to 1,000 in every form. Write base-ten blocks and numbers in expanded form (506 = 500 + 6), turn expanded forms back into numbers, even out of order (7 + 200 + 50), and find a missing part. Read number words and write the number, then write numbers in words with a word bank. The last page shows one number many ways: 235 is 2 hundreds 3 tens 5 ones, 1 hundred 13 tens 5 ones or 23 tens 5 ones. Every page comes in color and in black and white. Answer keys included.
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