Math Expectations
Addition, Subtraction and the Number System
Solves one and two step addition and subtraction word problems within 100
- Uses drawings and equations to represent the problem
- By the end of second grade, knows from memory all sums of two one-digit numbers (Memory does not mean to just memorize, rather students have had repeated opportunities to use strategies to develop automatically over time)
- Determines if a group of up to 20 objects has an odd or even number of objects
- Finds the total number of objects arranged in a rectangular array with up to 5 rows and up to 5 columns using addition
- Understands that the three digits of a three-digit number represent amounts of hundreds, tens and ones
- Counts within 1000; skip-count by 5's, 10's, and 100's
- Reads and writes numbers to 1000 using numerals (986), words (nine hundred eighty-six) and expanded form (900 + 80 + 6)
- Compares two three-digit numbers using >, <, and = symbols
- Accurately and efficiently adds and subtracts within 100 using a variety of strategies
- Adds up to four two-digit numbers
- Uses models or drawings to add and subtract within 1000
- Mentally adds or subtracts 10 or 100 to or from a given number 100 - 900
- Understands and explains why addition and subtraction strategies work
Estimates, measures and compares lengths of objects in standard units using appropriate tools
Solves measurement word problems involving addition and subtraction within 100 using drawings (such as a number line) and equations
Tells and writes time to the nearest 5 minutes
- Uses analog and digital clocks, as well as a.m. and p.m.
- Solves word problems involving quarters, dimes, nickels and pennies, using the $ and¢ symbols appropriately
Reasons with shapes and their attributes.
- Recognizes and draws triangles, quadrilaterals, pentagons, hexagons, and cubes
- Partitions circles and rectangles into two, three or four equal parts. Describes the parts using the words halves, thirds, and fourths
Supporting you Child
Math Support Videos
Sticker Notation Adding Tens and Ones
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Keeping One Number Whole and Adding on in Parts
With equations... |
On a number line... |