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Guidelines for solving Exercise 3 on pages 43 and 44 in the Grade 4 math textbook
Problem:
Given m = 10, n = 5, p = 2. Calculate the value of the expression:
a) m + n + p b) m - n - p c) m + n x p
m + ( n + p) m - (n + p) (m + n) x p
Solution Approach:
- Substitute the values of m, n, p into the given expressions, calculate meticulously to obtain the correct result.
* Note on the sequence of operations:
- In expressions containing only addition and subtraction or multiplication and division, perform operations from left to right.
- In expressions involving all four operations, execute multiplication/division first, followed by addition/subtraction.
- In expressions with parentheses, carry out operations inside the parentheses first, then outside the parentheses.
Answer:
Replace m = 10, n = 5, p = 2 in the expressions, resulting in the following outcomes:
a) m + n + p = 10 + 5 + 2 = 17
m + ( n + p) = 10 + ( 5 + 2) = 17
b) m - n - p = 10 - 5 - 2 = 3
m - ( n + p )= 10 - (5 + 2) = 3
c) m + n x p = 10 + 5 x 2 = 20
(m + n) x p = ( 10 + 5 ) x 2 = 30
Mytour has just provided guidance on solving Exercise 3 on pages 43 and 44 in the Grade 4 math textbook. Additionally, we also propose solutions for Exercise 1 on pages 43 and 44 in the Grade 4 Math Textbook, Exercise 2 on pages 43 and 44 in the Grade 4 Math Textbook, and Exercise 4 on pages 43 and 44 in the Grade 4 Math Textbook. Explore our solutions for exercises on pages 43 and 44 in Grade 4 math to excel in your math class!
