2nbt5 Worksheets

2nbt5

• Practice subtracting two-digit numbers to find how many are left or how many more are needed.
• Decide whether to add or subtract based on the symbols in the problem.
• Work carefully with place value so the ones and tens stay in the right spots.
• Practice finding a missing number in addition and subtraction equations
• Get comfortable seeing the unknown in different spots — at the beginning, middle, or end of an equation

1nbt42nbt5

• Add two numbers up to 100 to find the total.
• Use carrying (regrouping) when the ones add up to 10 or more.

2nbt5

• Subtract one 2-digit number from another to find the difference.
• Line up tens and ones correctly before subtracting.
• Use borrowing (regrouping) when the top ones digit is smaller than the bottom ones digit.

2nbt5

• Subtract two- and three-digit numbers when the top number has a zero in the middle.
• Use borrowing (regrouping) to subtract across a zero without getting stuck.
• Keep digits lined up by hundreds, tens, and ones when subtracting.

2nbt5

• Solve for the missing number in simple addition and subtraction equations within 100.
• Use addition and subtraction facts to figure out what value makes an equation true.
• Work with equations written using a letter or symbol for the unknown number.