Learn to count by fives, tens, and hundreds.
Addition_and_subtraction_missing_value_problems
Learn how to solve problems like "___ - 37 = 48" where you don't know one of the values in an addition or subtraction equation.
Intro_to_subtraction_with_2_digit_numbers
Learn how to subtract two-digit numbers. By the end of this tutorial, you'll be able to solve problems like 48-9 and 48-31. More advanced problems like 48-29 will be covered in a future tutorial.
Adding the same number to itself over and over
Strategies_for_adding_and_subtracting_within_100
Learn strategies for adding and subtracting two-digit numbers.
Learn how to solve addition and subtraction word problems. Numbers used 100 or less.
Learn to subtract two-digit numbers like 47 and 39.
Intro_to_addition_with_2_digit_numbers
Learn how to add two-digit numbers. By the end of this tutorial, you'll be able to solve problems like 48+6 and 48+21. More advanced problems like 48+28 will be covered in a future tutorial.
Learn how to solve addition problems like 24-3 and 45-30.
Word_problems_with_more_and_fewer_within_100_
Learn how to solve word problems that use the words "more" and "fewer". Numbers used are 100 or less.
Learn how to solve addition problems like 23+4 and 23+40.
Learn to add two-digit numbers like 37 and 49.
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