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
svetoff [14.1K]
4 years ago
13

Why is mental addition and subtraction important when you learn more difficult concept

Mathematics
2 answers:
Alex Ar [27]4 years ago
7 0
It is important so you can be more fluent or faster in knowing bigger problems
seraphim [82]4 years ago
6 0
It is important because addition is the opposing method of multiplication and subtraction is the opposing method to division. And you need to fluent and fast when it comes to real life!
You might be interested in
Write an expression for cos 68° using sine
Anettt [7]

Answer:

sin22°

Step-by-step explanation:

Using the cofunction identity

cos x = sin (90 - x), then

cos68° = sin(90 - 68)° = sin22°

8 0
3 years ago
A home file is the place where you should keep financial records that you may need to access regularly? True or False
alex41 [277]
True! we have an excel file called moneydoc.xls
6 0
3 years ago
Read 2 more answers
I have no idea how to solve this. please help?
matrenka [14]
I believe it’s c

π=C/2r
8 0
3 years ago
Help me! <br> Graph y=2x^2+5x-7
bija089 [108]
Hey! I feel so sorry for you. I’ve been stuck with graph questions for a while now. They can be tricky, especially long equations like that. I snapshotted the graph I calculated for you.

7 0
3 years ago
Three friends have a total of 6 identical pencils, and each one has at least one pencil. In how many ways can this happen?
Lorico [155]

Answer:

Step-by-step explanation:

events are 1+1+4=6

1+2+3=6

1+3+2=6

1+4+1=6

2+1+3=6

2+2+2=6

2+3+1=6

3+1+2=6

3+2+1=6

4+1+1=6

total number of ways=10

7 0
3 years ago
Read 2 more answers
Other questions:
  • How many solutions can be found for the system of linear equations represented on the graph?
    7·1 answer
  • Let tan(x)=25tan(x)=25 .<br><br> What is the value of tan(π−x)tan(π−x) ?
    6·2 answers
  • Find the equation of the linear function represented by the table below in slope-intercept form.
    14·1 answer
  • System of equations<br> -3x-4y=2 <br> 3x+3y=-3
    13·1 answer
  • Tabitha and her parents drive to Dallas for a wedding. After 90 minutes, Tabithas father tells Her they have traveled 105 miles
    6·1 answer
  • what is the interest earned in savings account after 12 months on a balance of $4500 if the interest rate is 1% apy compounded y
    7·1 answer
  • Find the missing side using the pythagorean theorem
    7·1 answer
  • X is greater than -43. Inequalities
    6·1 answer
  • Omar wants to use a graph to solve the equation below.
    12·2 answers
  • What is the diameter of a hemisphere with the volume of 74466
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!