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Guidance for solving Exercise 1 on page 57 Math 5
Problem:
Mental multiplication:
a) 1.4 x 10 b) 9.63 x 10
Multiply 2.1 by 100: 210 25.08 x 100
Multiply 7.2 by 1000: 7200 5.32 x 1000
c) Multiply 5.328 by 10
Multiply 4.061 by 100
0.894 x 1000
Solution method:
To perform the multiplication of a decimal number by 10, 100, 1000,... simply move the decimal point of the decimal number to the right corresponding to one, two, three,... digits.
Answer:
a) 1.4 x 10 = 14 b) 9.63 x 10 = 96.3
Multiply 2.1 by 100: 210 25.08 x 100 = 2508
Multiply 7.2 by 1000: 7200 5.32 x 1000 = 5320
c) Multiply 5.328 by 10: 53.28
Multiply 4.061 by 100: 406.1
0.894 x 1000 = 894
Section solving exercises page 57 Math 5, Multiplying a decimal number by 10, 100, 1000,.. consists of 3 exercises. Moving on to solving Exercise 1 page 57 Math 5. Mytour provides suggested answers and detailed solution methods for Solving Exercise 2 page 57 Math 5 and Solving Exercise 3 page 57 Math 5. Students should grasp the knowledge from this lesson.
