Examples for

Common Core Math: Grade 2: Numbers in Base Ten

In second grade, students extend their knowledge of place value to include the 1s, 10s and 100s places. Students compare multi-digit numbers, using inequality symbols to record the results, and count within one thousand, including counting by 5s, 10s and 100s. Students use their place value understanding to add and subtract within one thousand, including mentally adding and subtracting 10 or 100. Students represent their thinking using concrete objects, visual representations and written methods.
Common Core Standards

Get information about Common Core Standards.

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CCSS.Math.Content.2.NBT.A.1
second grade common core standard NBT.B.8

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second grade number and operations in base ten common core standards
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Place Value

Determine the place value of a digit based on its position in a number.

Describe the place values of a number (CCSS.Math.Content.2.NBT.A.1):

206 place value
place values of 724
value of the digit 3 in 537
place value 100
500 place values

Count within one thousand by skip-counting (CCSS.Math.Content.2.NBT.A.2):

count from 0 to 50 by fives
15 to 65 with step size 10
count from 0 to 1000 by 100

Read the name of a number (CCSS.Math.Content.2.NBT.A.3):

number name 582
four hundred twenty seven
2 hundred fifty three
943 in words

Compare the magnitudes of numbers (CCSS.Math.Content.2.NBT.A.4):

is 162 greater than 126?
which is smaller, 218 or 315?
compare 161 and 242
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Addition & Subtraction

Perform addition and subtraction.

Add and subtract whole numbers (CCSS.Math.Content.2.NBT.B.7):

15 + 32
169 - 48
add 622 and 341
729 minus 359
24 added to 18
subtract 22 from 58

Add several whole numbers (CCSS.Math.Content.2.NBT.B.6):

74 + 36 + 30 + 61
add 18, 45, 22, and 10

Add or subtract with 10 or 100 (CCSS.Math.Content.2.NBT.B.8):

123 + 10
495 - 100
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