Missing Number Equations Within 20
2nd grade worksheet: 12 facts within 20, six missing-number equations, sticker and crayon stories, and a two-step apple problem. Covers 2.OA.1 and 2.OA.2.
2nd Grade Addition and Subtraction Worksheets
2.OA fluency: adding and subtracting within 20 using mental strategies, working toward automatic recall of one-digit sums.
2nd Grade Math6 worksheets
Addition and Subtraction worksheets to download
Mental Math Bingo Within 20
Build-your-own bingo for facts within 20. Students pick 16 numbers, solve 16 called clues, and the key names a strategy for each. Common Core 2.OA.2.
Addition and Subtraction Word Problems Within 100
Four word problems within 100: joining stones, giving away stickers, comparing seeds, and a two-step library cart. Equation lines throughout. 2.OA.1.
Two-Digit Subtraction with Regrouping
Subtraction with regrouping: explain the modeled trade on 43 - 17, solve four vertical problems, and check 26 + 28 = 54 by addition. 2.NBT.5 and 2.NBT.9.
Odd and Even Numbers Sort
Sort ten numbers, pair 12 apples and 7 acorns, and write doubles like 8 = 4 + 4. One worksheet for the whole of Common Core 2.OA.3.
Two-Digit Addition with Regrouping
Six framed additions that all regroup, acorn and library stories, and a riddle whose sums spell FROG. Two-digit addition practice for 2.NBT.5.
Curriculum objectives covered
2.OA.1
“Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.”
2.OA.2
“Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.”
2.NBT.5
“Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.”
2.NBT.9
“Explain why addition and subtraction strategies work, using place value and the properties of operations.”
2.OA.3
“Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.”
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Place Value
2.NBT place value: understanding that the three digits of a three-digit number represent amounts of hundreds, tens, and ones.
Measurement and Data
2.MD measurement: measuring the length of objects by selecting and using appropriate tools such as rulers, yardsticks, and measuring tapes.
Geometry
2.G geometry: recognizing and drawing shapes having specified attributes, such as a given number of angles or faces.
Money and Time
2.MD money and time: telling and writing time from analog and digital clocks to the nearest five minutes, alongside money practice.