Math Practice Online

2nd Grade Math Practice

Practice two-digit addition and subtraction, first where no place needs regrouping and then where one does. Many classes work on place value and regrouping in 2nd grade, though timing varies.

In 43 + 25 and 43 + 29, only the ones digit of the second number is different.

No regrouping

43 + 25 = 68. No digit is regrouped. In place value: 3 ones + 5 ones = 8 ones

Regrouping

43 + 29 = 72. The ones make a new ten, written as a small 1 above the tens. In place value: 3 ones + 9 ones = 12 ones 12 ones 1 ten + 2 ones

Two-digit addition

Add two-digit numbers. Start with problems where the ones do not make a new ten, then move to the ones that do.

All addition practice

Two-digit subtraction

Subtract two-digit numbers, first where every place subtracts directly, then where a ten is regrouped as ten ones.

  • 2-Digit Subtraction Without Regrouping

    The ones can be subtracted without regrouping. Answers run from 0 to 89.

  • 2-Digit Subtraction With Regrouping

    The ones digit of the starting number is smaller than the one below it, so 1 ten is regrouped as 10 ones. Answers run from 1 to 79. Many people call this borrowing.

All subtraction practice

Single-digit facts

Quick single-digit practice keeps the facts that two-digit problems use close at hand.

Tools and printables