Addition and Subtraction with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is the process of carrying over a value from one column to the next when the sum of a column exceeds 9.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next column when the top number is smaller than the bottom number in a column.

Front

Solve: 12,000,345 - 3,721,000

Back

8,279,345

Front

If 23,456 people attended a rally and 13,220 fewer attended the next day, how many attended on Tuesday?

Back

10,236

Front

Solve: 1,000,000 - 625,901

Back

374,099

Front

Solve: 457,984 + 23,654

Back

481,638

Front

Solve: 236,732 + 43,298

Back

280,030

Front

What is the sum of 25 and 37?

Back

62

Front

What is the difference between 100 and 45?

Back

55

Front

What do you do when you can't subtract a digit in a column?

Back

You borrow from the next column to the left.