Math Study Guide
Math Study Guide—Unit 2—Number
Be able to:
- Understand place value up to the thousands (know that 10 units make a ten, 10 tens make a hundred, 10 hundreds make a thousand)
- Compare and order numbers to 1000 (greatest to least, least to greatest, which is greater and why: tell how you know, etc.)
- Use the symbols > and < to identify greater or less than of two numbers ( Example: 345 > 298 )
- Estimate quantities to the nearest ten or hundred
- Read numbers in several ways (words, numerals, base ten blocks, base ten name)
- Recognize and continue patterns in numbers (going up and down)
- Understand base ten groupings of units, tens, and hundreds
- To record, model and interpret numbers up to 1000 (modeling with base ten blocks, identifying the value of a digit, understanding the value of a number sentence, etc.)
- Count and represent values with coins
Examples
683 means:
This Base 10 block representation can be written as:
- 3 hundreds, 4 tens, 2 ones
- 300 + 40 + 2= 342
- three hundred forty two (Please note: The word "and" is NOT used when writing/saying a number)
- 342
Pattern examples: (could be counting up or down by 2, 3, 4, 5, 10, 25 or 100)
- 425, 450, 475, 500, 525, _____, _____, _____, _____
(pattern is going up by 25)
- 224, 222, 220, 218, 216, _____, _____, _____, _____
(pattern is going down by 2)
*Know the terms – unit or small cube (1), rod (10), flat (100), and cube (1000)
