1. The total of 36, 78, 198, 475, and 620 is
A. 1187.
B. 1407.
C. 1731.
D. 2109.
And could you explain how you got the answer so i could better understand how you acutally did that?
2006-12-28 00:59:56 · 14 answers · asked by Blaze T 2 in Science & Mathematics ➔ Mathematics
Wow, math is SOOO not boring! it is essential to most of what you will do in life.
OK, let's figure this out:
First let's look at the last number. To do this, add 6 and 8 and 8 and 5 to get 7. So now you know the number is either 1187 or 1407.
Next, I would estimate the number by saying that 36+78 is more than 100, and 198 is almost 200, and 475 is almost 500, and 620 is about 600, so the sum is about 100+200+500+600 or 1400.
So the answer is 1407 without having to actually add up the numbers. Of course you could use a calculator to check your work.
Now, was that boring, or kind of cool? (I know, I probably should not be asking this).
2006-12-28 01:06:30 · answer #1 · answered by firefly 6 · 2⤊ 0⤋
Addition
36 + 78 + 198 + 475 + 620 = 1407
- - - - - -
36 + 78 = 114 . . . .add the first two numbers
114 + 198 = 312. . the total of the first two numbers add to the third Number.
312 + 475 = 787. . the total of the third number add to the forth number
787 + 620 = 1407. .The total of the fourth number add to the fifth number.
- - - - - -s-
2006-12-28 02:31:44 · answer #2 · answered by SAMUEL D 7 · 2⤊ 0⤋
You have to add all the numbers:
36 + 78 + 198 + 78 + 36 = 1407
It's so easy that I'm not sure this is exatly what you really wanted to know.
2006-12-28 01:08:39 · answer #3 · answered by Jacaré 2 · 2⤊ 0⤋
*You can use a piece of paper and pencil, a calculator, or do it mentally in your mind. Its best to show all your work, in case of making errors.
36 + 78 + 198 + 475 + 620
114 + 198 + 475 + 620
312 + 475 + 620
787 + 620
1407
P.S. Math = boring? Try having a positive attitude about math. Math is used everywhere, in every career. You are able to buy things, count money, Pharmacists prescribe you medicine, Architectures and Construction workers built your home...etc.
2006-12-28 12:42:20 · answer #4 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
36+78+198+475+620=1,407
The answer is B.
2006-12-28 11:34:02 · answer #5 · answered by Anonymous · 1⤊ 0⤋
36 + 78 + 198 + 475 + 620 = 1407
Self explanatory
MATH = A GOOD JOB WITH GREAT PAY
2006-12-28 01:12:12 · answer #6 · answered by Pam 5 · 2⤊ 0⤋
b)
Firdt i checked the last digit, this is 7
next i look if the total is more as 1200, i do this by estimating 600 + 400 +200 + somethimg more thuis yes moire as 1200
so i go for b)
2006-12-28 18:01:51 · answer #7 · answered by gjmb1960 7 · 0⤊ 0⤋
Just add them together and you will get B. 1407
2006-12-28 03:56:05 · answer #8 · answered by David C 2 · 2⤊ 0⤋
if you realy find maths hard then follow the following method--
36+78+198+475+620
=30+6+70+8+200-2+500-25+600+20
=30+70+200+500+600+6+8-2-25+20
=100+200+500+600+12-5
=1400+7
=1407
just break down the nos. into smaller parts.
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2006-12-28 02:39:12 · answer #9 · answered by dhruv_dshmkh 1 · 2⤊ 0⤋
No,
Math = not for the faint of heart.
Had you been more daring you would know that there's much more to math than addition.
The answer by the way is B
2006-12-28 01:59:57 · answer #10 · answered by yasiru89 6 · 2⤊ 0⤋