 ## Grade 2 Math: Subtraction: 3 Digits

### Three Digit Subtraction: Place Value Table

In this lesson students learn how to subtract a three-digit number from a three-digit number when regrouping is required, and there is no zero in the minuend. Regrouping may be required in the tens place, the hundreds place, or both. The subtraction is completed using the standard algorithm and the process is illustrated using a Place Value Table.

In the problems in the lesson, the student must complete the subtraction of a three digit from a three-digit number using the standard algorithm, with a Place Value Table available to represent the process. Each digit in the answer, as well as any digit decremented in the process of regrouping, is evaluated separately by digit.

### Three Digit Subtraction: All Steps Onscreen

In this lesson students learn how to subtract a three-digit number from a three-digit number when regrouping is required, there is no zero in the minuend, and there is no Place Value Table present to represent the process. Regrouping may be required in the tens place, the hundreds place, or both. The subtraction is completed using the standard algorithm.

In the problems in the lesson, the student must complete the subtraction of a three digit from a three-digit number using the standard algorithm, when there is no zero in the minuend, but regrouping is required in either the tens place, the hundreds place, or both. Each digit in the answer, as well as any digit decremented in the process of regrouping, is evaluated separately by digit.

### Three Digit Subtraction: Zeros – Place Value Table

In this lesson students learn how to subtract a three-digit number from a three-digit number when regrouping is required, and there is a zero in the minuend in the ones place, the tens place, or both. Regrouping may be required in the tens place, the hundreds place, or both. The subtraction is completed using the standard algorithm and the process is illustrated using a Place Value Table.

In the problems in the lesson, the student must complete the subtraction of a three digit from a three-digit number using the standard algorithm, when there is a zero in the minuend in the ones place, the tens place, or both. Each digit in the answer, as well as any digit decremented in the process of regrouping, is evaluated separately by digit.

### Three Digit Subtraction: Zeros – All Steps On-screen

In this lesson, students subtract a three-digit number from a three-digit number when regrouping is required and there is a zero in the minuend in the ones place, the tens place, or both. Regrouping may be required in the tens place, the hundreds place, or both. The subtraction is completed using the standard algorithm, but no Place Value Table is present.

In the problems in the lesson, the student must complete the subtraction of a three digit from a three-digit number using the standard algorithm, when there is a zero in the minuend in the ones place, the tens place, or both. Each digit in the answer, as well as any digit decremented in the process of regrouping, is evaluated separately by digit.

### Three Digit Subtraction: Answer Only

In this lesson, students subtract a three-digit number from a three-digit number when regrouping is required and there is a zero in the minuend in the ones place, the tens place, or both. Regrouping may be required in the tens place, the hundreds place, or both. The subtraction is completed using the standard algorithm, but no Place Value Table is present.

In the problems in this lesson, only the final answer is entered, and it is evaluated as a whole.

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