Surf for More Math

Lesson 3 - Recording Two-Digit Addition

Use these interactive activities to encourage students to have fun on the Web while learning about recording two-digit addition. Students can try these activities on their own or in pairs.

Goals

Use a concrete model to add 2-digit numbers, with and without regrouping.

Record the addition process.

Instructions for Use

Adding Two-Digit Numbers Without Regrouping lets students use a concrete model to add 2-digit numbers without regrouping.

To use Adding Two-Digit Numbers Without Regrouping, click "OK" to add the ones column. Click "OK" to write the ones in the ones column. Click "OK" to add the tens column. Click "OK" to write the tens in the tens column. Click the "Next" button to try another question.

Adding Two-Digit Numbers Without Regrouping Exercise lets students use a concrete model to practice adding 2-digit numbers without regrouping.

To use Adding Two-Digit Numbers Without Regrouping Exercise, click the "Start" button. Add the ones column and input the answer in the text box. Add the tens column and input the answer in the text box. Click the "Next" button to try another question.

Adding Two-Digit Numbers With Regrouping lets students use a concrete model to add 2-digit numbers with regrouping.

To use Adding Two-Digit Numbers With Regrouping, click "OK" to add the ones column. Click "OK" to write the ones in the ones column. Click "OK" to add the tens column. Click "OK" to write the tens in the tens column. Click "OK" to regroup the ones. Click "OK" to write the ones in the ones column. Click "OK" to write the extra tens in the tens column and add the extra tens to the column. Click the "Next" button to try another question.

Adding Two-Digit Numbers With Regrouping Exercise lets students use a concrete model to practice adding 2-digit numbers with regrouping.