Five pages on place value with numbers to a million, plus one row on each page with numbers to the hundred millions for the states that teach them in 4th grade. Page 1 fills a place value chart with its three periods (millions, thousands, ones), finds the value of an underlined digit, and uses 10 times as much: 10 × 3,000 = 30,000, and in 440,000 the first 4 is worth 10 times the second 4. Page 2 moves between standard form and word form, then writes numbers in expanded form two ways: 305,629 = 300,000 + 5,000 + 600 + 20 + 9 = 3 × 100,000 + 5 × 1,000 + 6 × 100 + 2 × 10 + 9 × 1. Page 3 reads number lines, compares pairs with >, <, and =, and orders sets of three. Page 4 rounds on number lines (exactly halfway rounds up), fills a table rounding to the nearest 1,000, 10,000, and 100,000, and circles every number that rounds to 600,000. Page 5 rounds to the nearest ten thousand and hundred thousand to estimate sums and differences, then reviews: 5 hundred thousands + 12 thousands + 7 tens = 512,070.
Draw a large place value chart on the board with the three periods labeled, and read a number together one period at a time: "three hundred five thousand, six hundred twenty-nine". Ask why there is a comma after the thousands. Before page 4, put 47,815 on a number line from 40,000 to 50,000 and ask which ten thousand it is closer to.
Look up big numbers together: the population of your town or state, the distance to the moon, the price of a house. Ask your child to read the number aloud, say what the first digit is worth, and round it to the nearest hundred thousand.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
A 5-page place value pack for 4th grade. Fill a place value chart to the millions, find the value of a digit, and see that each place is 10 times the place to its right. Write numbers in standard, word, and expanded form, read number lines, compare and order numbers to a million, round to the nearest thousand, ten thousand, and hundred thousand, and round to estimate sums and differences. One row on each page goes to nine-digit numbers. Every page comes in color and in black and white. Answer keys included.
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