2 years ago

How can you use mental math to multiply numbers by 10?

Mathematics

2 answers:

expeople1 [14]2 years ago

6 0

Answer:

Move the decimal point one space to the right

Step-by-step explanation:

Ex:

12*10=120 12=12.0 move the decimal one space to the right=120

You can also just add 0 if there isn't a decimal point

13.5*10=135 move the decimal one space to the right

hope this helps :)

Wittaler [7]2 years ago

3 0

Answer:

add a zero at the end of the number. 5x10=50. 60x10=600. 700x10=7000 etc.

Step-by-step explanation:

You might be interested in

Help plz,.<br>cos5A - cosA / sin5A+sinA-2sin3A=cotA<br>prove it.

RSB [31]

Answer:

here is your answer of the question

8 0

2 years ago

Read 2 more answers

Explain how to find 40 x 50 using mental math

Blababa [14]

40 * 50= 2,000

Easy way to find this out!

4*5=20.

You take the 0 from 40 and the 0 from 50 and you have

20 +0 zeros.

2000 which is 2,000!

7 0

3 years ago

Read 2 more answers

Someone, please help me out here.

makvit [3.9K]

Answer:

Smallest to largest

Step-by-step explanation

4/3, square root of 2, 1.423..., pie, 1.666...., square root of 4

8 0

2 years ago

There are 320 sixth grade students at Median Middle School. The school is hosting a field trip and 45% of the students are going

ratelena [41]

Answer:

the answer is 144

hope this helps

4 0

2 years ago

Read 2 more answers

4x + 5y = 12 and 3x + 4y = 9.25 . Solve for systems of equations

masha68 [24]

Answer:

y=1

x=7/4

Step-by-step explanation:

4x + 5y = 12

3x + 4y = 9.25

4x + 5y = 12

12x + 16y =37

-12x -15 y =-36

12x + 16y =37

y=1

x=7/4

8 0

2 years ago

Read 2 more answers