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Solve the challenging problem on page 52 of Math Grade 5 Workbook, Calculate with the most convenient methodGuidelines for solving problem 2 on page 52 Math Grade 5 Workbook
Problem:
Calculate with the most convenient method:
a) 4.68 + 6.03 + 3.97
b) 6.9 + 8.4 + 3.1 + 0.2
c) 3.49 + 5.7 + 1.51
d) 4.2 + 3.5 + 4.5 + 6.8
Solution Method:
For this exercise, you need to apply the associativity property of addition, grouping numbers so that when added together, their sum is a natural number for quick calculation.
Answer:
a) 4.68 + 6.03 + 3.97
= 4.68 + (6.03 + 3.97)
= 4.68 + 10
= 14.68
b) 6.9 + 8.4 + 3.1 + 0.2
= (6,9 + 3,1) + (8,4 + 0,2)
= 10 + 8,6
= 18,6
c) 3,49 + 5,7 + 1,51
= (3.49 + 1.51) + 5.7
= 5 + 5.7
= 10.7
d) 4.2 + 3.5 + 4.5 + 6.8
= (4.2 + 6.8) + (3.5 + 4.5)
= 11 + 8
= 19
Section solution for exercise on page 52 Mathematics 5 includes 4 exercises. After solving exercise 2 on page 52 Textbook Mathematics 5, you can continue to explore hints and methods for solving Exercise 1 on page 52 Textbook Mathematics 5, solving Exercise 3 on page 52 Textbook Mathematics 5, and solving Exercise 4 on page 52 Textbook Mathematics 5 to improve your understanding of the 5th-grade math subject.
