Math Problem Statement

5 by 8 + -3 by 5

Solution

The expression you provided is:

5×8+(3)×55 \times 8 + (-3) \times 5

Let's solve this step by step:

  1. First, calculate 5×85 \times 8: 5×8=405 \times 8 = 40

  2. Next, calculate (3)×5(-3) \times 5: (3)×5=15(-3) \times 5 = -15

  3. Now, add the two results together: 40+(15)=4015=2540 + (-15) = 40 - 15 = 25

Thus, the final result is:

2525

Would you like further details or have any questions?

Here are 5 related questions for practice:

  1. What is 6×9+(4)×76 \times 9 + (-4) \times 7?
  2. Calculate 8×7+(2)×98 \times 7 + (-2) \times 9.
  3. Simplify 5×(3)+6×45 \times (-3) + 6 \times 4.
  4. What is the result of 4×(5)+3×64 \times (-5) + 3 \times 6?
  5. Solve for 7×5+(8)×47 \times 5 + (-8) \times 4.

Tip: When dealing with negative numbers in multiplication, remember that multiplying two numbers with opposite signs results in a negative number.

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Math Problem Analysis

Mathematical Concepts

Basic Arithmetic
Multiplication
Addition
Negative Numbers

Formulas

Multiplication formula: a × b
Addition formula: a + b

Theorems

Basic properties of multiplication and addition with negative numbers

Suitable Grade Level

Grades 5-6