Solve the Decimal Addition: 0.4 + 0.3

Question

Solve the following:

0.4+0.3= 0.4+0.3=

Video Solution

Solution Steps

00:05 Let's solve this by adding vertically.
00:09 First, arrange the numbers one below the other.
00:13 Make sure the decimal points line up nicely.
00:16 Start with the smallest digits on the right.
00:20 Add them up and write the result.
00:25 Keep going, add the next digits, and write each total.
00:34 That's how you find the answer! Well done!

Step-by-Step Solution

To solve the decimal addition 0.4+0.30.4 + 0.3, we will follow these steps:

  • Step 1: Line up the numbers by the decimal point.

  • Step 2: Add the decimal fractions directly as both numbers have only one digit after the decimal point.

  • Step 3: Sum the values and retain the decimal point in the same position for the result.

Let's begin the calculation:

Write the numbers aligning them by the decimal point:

0.4 0.4
+0.3 +0.3
_______
0.7 0.7

Adding the two numbers 0.40.4 and 0.30.3 gives 0.70.7.

Therefore, the solution to the problem is 0.70.7, which matches choice 1.

Answer

0.7