1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kruka [31]
3 years ago
8

Explain how using basic facts can help you find 10x20x30x40 mentally

Mathematics
2 answers:
murzikaleks [220]3 years ago
6 0

Answer:

first multiply 1 times 2 which is easy 2, then 2 times 3 which is 6, then 6 times 4

After add up the zeros and there are 4 zeros so the answer is

40000

Step-by-step explanation:

Bess [88]3 years ago
6 0

Answer:

multiply the first number 1*2*3*4 then add the zeros

You might be interested in
Which is a better buy, 4 lunches for $57 or 5 lunches for $71?
worty [1.4K]
Answer: 5 lunches for $71 is better
57/4=14.25
71/5=14.2
3 0
3 years ago
The Boeing 747 airplane is 250 feet in length. If you make a model of this
ch4aika [34]

Answer:

  • 20 inches

Step-by-step explanation:

<u>Solve using ratios, which gives us equal scale factors:</u>

  • 2 / x = 25 / 250
  • 2 / x = 1 / 10
  • x = 2*10
  • x = 20 inches
3 0
2 years ago
Read 2 more answers
4x + 6 = 30
Arturiano [62]

Answer:

x<-4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How do you solve 9x-5=13
DENIUS [597]

Answer:

2

Step-by-step explanation:

add 5 to 13 then divide 9 by that number and that is what x equals

3 0
3 years ago
Read 2 more answers
48.6÷12 its middle school work dividing decimals<br>​
grin007 [14]

Answer:

4.05

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • A shipping company is designing new cardboard packages to sell to customers. The options are a rectangular prism box a or a tria
    15·2 answers
  • In AABC, 2B= 2C, and m_A= 349. Find mzo<br> A. 56°<br> B. 730<br> c. 112°<br> 1460
    15·1 answer
  • I need to know how do I do this in what's the answer to the question
    11·1 answer
  • What are the x and y intercepts of f(x) = x2-x-12/x2+5x+6 and is there a hole? ​
    12·1 answer
  • Solving polynomial equations by factoring Solve: 1/2x^2+5x+25/2=0 Full explanation please, thanks
    8·1 answer
  • -2 divided by 15/2 in fraction form
    9·2 answers
  • Diego's sister is twice his age minus 9 years. She is also as old as half the sum of the ages of Diego and both of his 12-year-o
    8·2 answers
  • Evaluate the function.<br> f(x) = x2 - 4<br> Find f(5)
    8·1 answer
  • Use the slope formula to find the missing coordinate.
    7·1 answer
  • Which can be represented by the expression 17 – 2x? A. 17 less than twice a number B. the difference between 17 and twice a numb
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!