The number 472, for instance, has a 2 in the “one’s place,” a 7 in the “tens place,” and a 4 in the “hundreds place. " This means that the 2 is just worth 2, but the 7 (in the tens place) is ten times as big as it looks. It actually means 70. The 4 in the hundreds place is ten times as big again and means 400.
The number 472, for instance, has a 2 in the “one’s place,” a 7 in the “tens place,” and a 4 in the “hundreds place. " This means that the 2 is just worth 2, but the 7 (in the tens place) is ten times as big as it looks. It actually means 70. The 4 in the hundreds place is ten times as big again and means 400.
For example, the number 1. 65 has a 1 in the one’s place, a 6 in the tenths place, and a 5 in the hundredths place. The 6 is one-tenth as big as it looks (0. 6), and the 5 is one-hundredth the size of a regular 5 (just 0. 05).
For example, to solve 31. 8 + 0. 45, write 31. 8 over 0. 45, with the 1 over the 0 (both in the one’s place) and the 8 over the 4 (both in the tenths place).
For example, you can write 31. 8 + 0. 45 as 31. 80 + 00. 45, so they line up over each other.
For example, to solve 31. 80 + 00. 45, start with 0 + 5. Write the answer, 5, beneath that column. 31. 80 + 00. 45 = _ _ . _ 5.
In our example problem, the next column to add is 8 + 4. The answer is 12, which can’t fit in one digit of the answer. Write the 2 in the answer line, and carry the 1 into the column to the left, writing it as a small number above the column. 31+1. 80 + 00. 45 = _ _ . 2 5.
Adding the next column in our example: 31+1. 80 + 00. 45 = _ 2 . 2 5. Adding the final column (3 + 0) we get 32. 25.
