0.1+2×2.4÷0.2-0.7

1.1×0.1+3.01-1.01

Operations should be performed in order PEMDAS: Parenthesis - Exponent - Multiplication - Division - Addition - Subtraction.

But Multiplication and Division operations can be performed from left to right, no need to perform multiplication first then division. That is also applicable in Addition and Subtraction operations.
There are certain rules, and I suggest you read them.

In the first problem, 0.1 + 2 × 2.4 ÷ 0.2 - 0.7
We can do multiply & divide first: 2 × 2.4 ÷ 0.2 = 24
Rewriting, 0.1 + 24 - 0.7 , and this is equal to 23.4

Now try doing the other problem. Hope this helps~ `u`

Your School SUBJECT is MATH.

To solve these mathematical expressions, we'll follow the order of operations:

1. Parentheses (if any)
2. Exponents (if any)
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's solve the first expression step by step:

0.1 + 2 × 2.4 ÷ 0.2 - 0.7

First, we solve the multiplication and division from left to right:

2 × 2.4 = 4.8
4.8 ÷ 0.2 = 24

Now, we substitute these results back into the expression:

0.1 + 24 - 0.7

Next, we perform the addition and subtraction from left to right:

0.1 + 24 = 24.1
24.1 - 0.7 = 23.4

So the result of the first expression is 23.4.

Now let's solve the second expression in the same manner:

1.1 × 0.1 + 3.01 - 1.01

Multiplication and division:

1.1 × 0.1 = 0.11

Substitute the result back into the expression:

0.11 + 3.01 - 1.01

Addition and subtraction:

0.11 + 3.01 = 3.12
3.12 - 1.01 = 2.11

So the result of the second expression is 2.11.