Grade 2 - Place value (regrouping)

Place value is the value of a digit based on its position within a number. For example, in the number 42, the 4 is in the tens place and represents 40, while the 2 is in the ones place and represents 2.

Regrouping in place value involves rearranging groups of ten to simplify addition or subtraction. For example, if you have 12 ones, you can regroup them into 1 ten and 2 ones.

2 tens + 22 ones equals 42 in standard form.

5 tens + 31 ones equals 81 in standard form.

4 tens + 13 ones equals 53 in standard form.

4 tens + 26 ones equals 66 in standard form.

2 tens + 14 ones equals 34 in standard form.

In the number 73, the digit 3 is in the ones place, so its value is 3.

In the number 58, the digit 5 is in the tens place, so its value is 50.

To convert tens and ones into a two-digit number, multiply the number of tens by 10 and add the number of ones. For example, 3 tens and 4 ones equals 30 + 4 = 34.