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This chapter focuses on benchmark numbers, which help estimate quantities without precise counting, such as 25, 50, 100, or 1000. It explains comparison symbols like "greater than" (>) and "less than" (<) with examples, illustrating how to compare numbers effectively. The concept of "equal to" is introduced, emphasizing values that match. Rounding is also discussed, detailing how to replace numbers to indicate approximate values, for instance, rounding 374 to 370 or 400. These fundamental concepts are essential for developing mathematical reasoning and comparison skills.
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Math Vocabulary Chapter 3
Benchmark Numbers • numbers that help you estimate the number of objects without counting them, such as 25, 50, 100, 1000 . .
Greater than (>) • a symbol used to compare two numbers, with the greater number given first Example: • 8 > 6 • 8 is greater than 6.
Equal to • having the same value Example • 4 + 4 = 3 + 5
Compare • to describe whether numbers are equal to, less than, or greater than each other
Less than (<) • a symbol used to compare two numbers, with the lesser number given first Example: • 6 < 8 • 6 is less than 8.
Rounding • replacing a number with another number that tells abouthow many or how much Examples: • 374 rounds to 370 (nearest 10) or • 374 rounds to 400 (nearest 100)
See you next week A Susan Ging Lent Production
