Solve (1×10.3) + (10.1×4): Decimal Multiplication and Addition

Question

$(+1)\times(10.3)+(10.1)\times(+4)=$

00:00 Solve

00:04 Let's solve one operation at a time

00:09 1 multiplied by any number always equals the number itself

00:14 Now let's calculate the second multiplication

00:17 Let's break down the number into whole number and remainder

00:20 Let's properly open parentheses and multiply by each factor

00:31 This is the multiplication calculation, let's put it in the exercise

00:36 Let's calculate and solve

00:40 And this is the solution to the question

Let's solve the exercise by first solving the two multiplication problems, and then combining them:

$1\times10.3=10.3$

Now let's break down 10.1 and multiply it by 4 as follows:

$(10+0.1)\times4=$

Let's multiply 4 by 10 and then by 0.1:

$40+0.4=40.4$

Now we have the exercise:

$10.3+40.4=$

We'll solve accordingly and get:

$50.7$

$50.7$