Buzz
Step-by-step guide to solve exercise 2 on page 48 of the Math book for Grade 4
Problem Statement:
Calculate the value of the expression:
a) 570 - 225 - 167 + 67 b) 468 : 6 + 61 x 2
168 x 2 : 6 x 4 5625 - 5000 : (726 : 6 - 113)
Method to Solve:
- In an expression, if there are only multiplication and division, or subtraction and addition, compute from left to right.
- If the expression contains both multiplication, division, addition, and subtraction, perform multiplication/division first, then addition/subtraction.
- If there are parentheses in the expression, calculate the operation inside the parentheses first, then outside the parentheses.
Correct Answers:
a) 570 - 225 - 167 + 67 = 78 + 122
= 345 - 167 + 67 = 78 + 122
= 178 + 67 = 200.
= 245.
= 168 x 2 : 6 x 4 = 5625 - 5000 : (121 - 113)
= 336 : 6 x 4 = 5000 - 5000 : 8
= 56 x 4 = 5625 - 625
= 224.
Next to solving exercise 2 on page 48 of Math 4 textbook. Mytour provides detailed answer suggestions and solving methods for Exercise 1 Page 48 Math 4 textbook practice, Exercise 3 Page 48 Math 4 textbook practice, Exercise 4 Page 48 Math 4 textbook practice, and Exercise 5 Page 48 Math 4 textbook practice. Students need to grasp the knowledge of this lesson.
