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Grade 2 Number and Operations (Base 10)

What your student will learn?

Understand that the three digits in a three-digit number represent hundreds, tens, and ones. (2.NBT.1)
 
Quarter 1
 
Count within 1000; skip-count by 5s, 10s, and 100s. (2.NBT.2)
 
Quarter 1
 
Read and write numbers to 1000 with numerals, number names, and expanded form (2.NBT.3)
 
Quarter 1
 
Compare two three-digit numbers using >, =, and <. (2.NBT.4)
 
Quarter 1
 
Fluently add and subtract within 100. (2.NBT.5)
 
Quarter 1 and 2
 
Add up to four two-digit numbers. (2.NBT.6)
 
Quarter 2
 
Add and subtract within 1000. (2.NBT.7)
 
Quarter 3 and 4
 
Mentally add or subtract 10 or 100 to a number 100-900. (2.NBT.8)
 
Quarter 1
 
Explain why addition and subtraction strategies work. (2.NBT.9)
 
Quarter 1, 2, 3, and 4
 

Vocabulary

  • Skip Count: to count in equal increments by 2s, 3s, 4s, 5s, or 10s
  • Expanded Form: a way of writing numbers to show place value (346=300+40+6)
  • Numeral: a symbol used to represent a number

 

Activities At Home

  • Skip count when counting groups of nickels and dimes.
  • Count in a pattern while doing a rhythmic or repeated task – stirring pancake batter, brushing hair, putting away groceries, walking.
  • Roll two dice to make a two digit number. Subtract it from 99 or 100.
  • Represent two digit numbers with popsicle sticks - make bundles of ten for the tens and use single sticks for the ones.
  • Roll dice to make two or three digit numbers with a partner. See who can make the larger number.
  • Add all of the digits of your house number together.
  • Compare prices of various items (gas, toys, etc) to find the lowest amount.
  • Make numbers or find numbers on labels and compare them.
  • Find or roll numbers and write them in expanded form.
  • Find or roll numbers and tell which place value each digit represents.


Learning Links


Grouping_and_grazing.png
Grouping in 5's and 10's

 
PBS_Cyberchase_comparing_numbers.png
Compare Numbers
Line_Jumper.png
Adding on a Number Line
Finding_numbers.png
Finding Numbers on a Hundreds Chart

 
Place_Value_Blocks.png
Place Value Blocks
Mathline_Make_ten.png
Make Combinations of Ten
sum_sense.png
Sum Sense
even_and_odd.png
Even or Odd
 
Poodle_Weigh_In.png
Equal or Not Equal

 
Skip_Count_by_5.png
Skip Count

 
Skip_counting.png
Skip Counting

 
AddingSubtracting BaseTen.png
Adding and Subtracting with Base Ten Blocks

2nd Grade Common Core

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