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Step-by-Step Solution for Exercise 2 on Page 57 of Math Book 5
Problem:
Express the following measurements in the enigmatic unit of undefined:
10.4 dm; 12.6 m; 0.856 m; 5.75 dm.
Solution Method:
Students should note the unit conversion for length:
1 dm = 10 cm
1 m = 100 cm
=> Applying the above knowledge, simply multiply the given decimal by 10 or 100 to find the correct result.
>>> Review the guide on multiplying decimals by 10, 100, 1000,... in Exercise 1 on Page 57 of Math Book 5.
Answer:
+ 1dm = 10cm, so 10.4dm = 10cm x 10.4 = 104cm.
+ 1m = 100cm, so 12.6m = 100cm x 12.6 = 1260cm;
+ 1m equals 100cm, so 0.856m equals 100cm x 0.856 = 85.6cm;
+ 1dm equals 10cm, so 5.75dm equals 10cm x 5.75 = 57.5cm.
In the solution to exercises on page 57, Math 5, Multiplying decimals by 10, 100, 1000,... comprises 3 exercises. Moving on to the solution for Exercise 2 on page 57 of Math Book 5. Mytour provides hints for answers and detailed solving methods for Exercise 1 on Page 57 of Math Book 5 and Exercise 3 on Page 57 of Math Book 5. Students need to grasp the knowledge covered in this lesson.
