2nd grade math word problems

In this blog we will learn about 2nd grade math word problems,

Example 1 (Addition):

On a fine morning there were 3 peacocks in the garden and 2 peahens were near it. How many birds were there in the garden in the morning?

Solution:

Number of peacocks- 3,

Number of peahens- 2.

Total no of birds in the garden=

=5 [Birds]

Therefore, there were 5 birds in the garden.

Example 2 (Subtraction):

To Harris’s birthday party 24 boys and 15 girls came. Find how many boys were more than the girls present in the party.

Solution:

Number of boys present in the party -24,

Number of girls present in the party- 15.

The difference of number of boys and girls present in the party are;

=

= 9.

Therefore, there were 9 boys more than the class.This was one simple example of 2nd grade math word problems.When students learn any sum or method its a process and as the class advances and the age of the student increases the problems and sums also become wide ranged.Most of the students fear tests and exams,even I remember having a very scary experience of 7th grade math test.In the next blog we will learn about multiplication tables chart.Hope you like the above example of 2nd grade math word problems.Please leave your comments if you have any doubts.

analytical geometry

In this blog let us learn about analytical geometry,
Find the equation of the parabola if the curve is open upward, vertex is (− 1, − 2) and the length of the latus rectum is 4.
Solution:
Since it is open upward, the equation is of the form

(x − h)² = 4a(y − k)

Length of the latus rectum = 4a = 4 and this gives a = 1

The vertex V (h, k) is (− 1, − 2)

The equation of parabola is [x-(-1)]²=4*1 [y-(-2)]

[x+1]²=4[y+2].In the next blog we will learn about deviation and ratios.Hope your like the above example of analytical geometry,please leave your comments if you have any doubts.

Math is an Invention ?

Welcome to math helper,

Personally, I think that the question 'Is math invented or
discovered?' is meaningless. But thinking about _why_ it's meaningless
can lead you to some very interesting ideas about the nature of
meaning!

(For example, if you're lucky it might lead you to read Doug
Hofstadter's wonderful essay 'A Conversation with Einstein's Brain',
in his book _The Mind's I_.) examples on math help; So I hope you'll continue to noodle
around with this issue this even after your essay has been completed.
I hope the above explanation was useful, now let us learn more on online math tutors.

math intuition

Welcome to free math tutor online,

One way to train my intuition is to compare the problem with something
I've seen plenty of times in real life. I've painted murals, mixing
the colors I want from poster paint. Often I want a light color, and a
little color goes a long way.

I have learned to be very careful not to
add too much color to the white at first. Why? I If I need 1 part blue
to 100 parts white (which is not unreasonable in my experience), and I
put in 2 dabs of blue instead of 1, meet math tutors online for more examples;
I need to add another 100 parts of
white to get the color to be what I wanted!

I can't tell you how many
times I've ended up with far more paint than I needed, by the time I
got the color right. I've learned that it's better to throw away half
the too-dark mixture, rather than try to save the whole batch by
adding white. learn more on math forum.

Sphere of radius

Welcome to free online math tutoring,

We have a sphere of radius R, with a rope of length 2 pi R around its
circumference; then we add L units to that circumference. What is the
new radius of the rope? The new circumference is (2 pi R + L); the new
radius is that divided by 2 pi, or R + L/(2 pi). This means that the
radius is increased by L/(2 pi), which is independent of R.

This seems a little less surprising, perhaps, than if we solved it with specific
numbers, since we don't have a specific unexpectedly large number to
reject outright; we're forced to look at the algebra. more help on online math forum;
But we can still question the algebra once we see what it tells us.

The next step, of course, is to check the answer: plug in actual numbers for R and L,
solve for the change in R, and then add that to R to find what the new
circumference will be. It will be L more than the original, showing
that as long as we accept 2 pi R, our answer is right. read more on math forum.