InkLoop/NYS Standards/NY-2.NBT.8NY-2.NBT.8
2nd GradeNumber and Operations in Base Ten50 target questions
Mentally add 10 or 100 to a given number 100-900 and mentally subtract 10 or 100 from a given number 100-900.
Sample Practice Questions (3)
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Look at the place value chart below. If you mentally add to this number, what is the new number?
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Multiple choice · diagramSee Answer + Explanation →
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NY-2.OA.1Use 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.→NY-2.OA.2Fluently add and subtract within 20 using mental strategies. By end of Grade 2 know from memory all sums of two one-digit numbers.→NY-2.OA.3Determine whether a group of objects (up to 20) has an odd or even number of members by pairing objects or counting them by 2s.→NY-2.OA.4Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.→