This is a great resource for students who want extra practice with their math facts at home. As a teacher/parent all you have to do is simply print the flashcards on card stock, cut them out, and then they are ready to be used!
Log in to see state-specific standards (only available in the US).
Add up to four two-digit numbers using strategies based on place value and properties of operations.
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
10 can be thought of as a bundle of ten ones - called a “ten.”