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Solving exercises from page 58 Math Grade 5 Practice - Including solving methods
Solving exercise 1 page 58 Math Grade 5 Practice
Problem:
Mentally calculate:
1.48 x 10 5.12 x 100 2.571 x 1000
15.5 x 10 0.9 x 100 0.1 x 1000
What number must 8.05 be multiplied by to get a product of 80.5; 805; 8050; 80500?
Method:
Review how to multiply a decimal number by 10, 100, 1000,... in Exercise 1 solution page 57 Math 5 textbook.
Answers:
a) 1.48 x 10 = 14.8 5.12 x 100 = 512
2.571 x 1000 = 2571 15.5 x 10 = 155
0.9 x 100 = 90 0.1 x 1000 = 100
b) 8.05 x 10 = 80.5 8.05 x 100 = 805
8.05 x 1000 = 8050 8.05 x 10000 = 80500.
Solution Exercise 2 page 58 Math 5 textbook
Problem:
Solve:
a) 7.69 x 50; b) 12.6 x 800;
c) 12.82 x 40; d) 82.14 x 600;
Method:
Read the detailed instructions on how to multiply a decimal number by a natural number in Multiplying a Decimal Number by a Natural Number.
Solution:
Distance travelled by the person in the first 3 hours: 10.8 x 3 = 32.4 (km)
Distance travelled by the person in the next 4 hours: 9.52 x 4 = 38.08 (km)
Total distance travelled: 32.4 + 38.08 = 70.48 (km)
Final answer: 70.48km.
Solving exercise 3 page 58 Math 5
Problem:
A person rides a bicycle, in the first 3 hours, they travel 10.8km each hour, and in the following 4 hours, they travel 9.52km each hour. How many kilometers did they travel in total?
Method:
* Problem summary:
First 3 hours: Travelled 10.8 km/1 hour
Next 4 hours: Travelled 9.52 km/1 hour
Total distance: ? km
* Solution steps:
- Step 1: Calculate the distance travelled in the first 3 hours by multiplying the speed by the time
- Step 2: Calculate the distance travelled in the next 4 hours by multiplying the speed by the time
- Step 3: Calculate the total distance travelled by adding the distance travelled in the first 3 hours to the distance travelled in the next 4 hours
Solution:
Distance travelled by the person in the first 3 hours: 10.8 x 3 = 32.4 (km)
Distance travelled by the person in the next 4 hours: 9.52 x 4 = 38.08 (km)
Total distance travelled: 32.4 + 38.08 = 70.48 (km)
Final answer: 70.48km.
Answer:
Method:
Substitute specific numbers from 0, 1, 2, 3,... into the equation 2.5 times x and then compare it with 7. Stop the trial when the last hidden x value satisfies the condition of being less than 7 when multiplied by 2.5, then conclude the appropriate values of x.
Answer:
Solving exercise 4 page 58 Math 5, Practice - Concise
Solving exercise 1 page 58 Math 5, Practice
Solving exercise 2 on page 58 of Math 5 textbook, Practice
Solving exercise 3 on page 58 of Math 5 textbook, Practice
In Chapter I, we familiarize ourselves with measurement units, where Hectare is widely used. Let's take a look at hints for solving exercises on page 29, 30 of Math 5 textbook to excel in 5th-grade Math.
Solving exercise 4 on page 58 of Math 5 textbook, Practice
Above are hints for Solving exercises on page 58 of Math 5 textbook with detailed explanations. Prepare for the content of Multiplying decimal numbers with decimal numbers through Solving exercises on pages 58, 59 of Math 5 textbook and Practice exercises on page 60 of Math 5 textbook through Solving exercises on page 60 of Math 5 textbook to excel in Math 5.
In addition to the above content, you can explore more about Solving exercises on page 68 of Math 5 textbook to enhance your knowledge of Math 5.
Furthermore, Solving exercises on page 68 of Math 5 textbook, Practice is an important lesson in the Math 5 curriculum that you need to pay special attention to.
