2.NBT.5:
Number And Operations In Base Ten
Use Place Value Understanding And Properties Of Operations To Add And Subtract.
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:
Number And Operations In Base Ten
Use Place Value Understanding And Properties Of Operations To Add And Subtract.
Explain why addition and subtraction strategies work, using place value and the properties of operations.3
3.NF.1:
Number And Operations - Fractions
Develop Understanding Of Fractions As Numbers.
Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.
2.MD.8:
Measurement And Data
Work With Time And Money.
Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and c symbols appropriately. Example: If you have 2 dimes and 3 pennies, how many cents do you have?