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Dana Dutch
Math 115Basic Math
Check Point 1 Week 1
Section 1.1
6.
3 in the number 38,615 is
ten thousand
18.
Three hundred fifty thousand, three hundred fifty nine
350,359
22
. Science and medicine.
Scientific speculation is that the universe originated in the
explosion of a primordial fireball approximately twenty billion years ago.
20,000,000,000
28. What was the population of Dallas in 2000?
One thousand, one hundred eightynine
Section 1.2
6.
9+7=7+9 the property is
commutative property
18.
12,325
+35,403
47,728
so to get the answer I worked right to left 5+3=8; 2+0=2;3+4=7;2+5=7;1+3=4
22. 3,678
259
27
+2,356
6,320
to get the answer I added 8+9+7+6=30 so you add the 0 carry the 3 on top of the 7;
then you add 3+7+5+2+5 and the answer is 22 so you add the 2 carry over the other 2 on top of
the 6' than you add 2+6+2+3 and the answer is 13 than you add the 3 carry over the 1 and finally
1+3+2=6.
28.
3+4+8=
15
what I did was draw a number line
start with 3 going to the last number 20. I put
a black dot and counted 4 after the 3 and came up with 7 than I started with 7 and counted to 8
and the final number is 15.
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View Full Document Section 1.3
22.
53,500
 28,700
24,800
to get the answer I went right to left.
Zero minus Zero equals Zero, when I got to
the five I borrowed one off of the three which made that into a two. So I added the one I
borrowed from the three and it gave me fifteen. Fifteen minus seven equals eight. So since I
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This note was uploaded on 09/26/2010 for the course MATH 115 math 115 taught by Professor Webb during the Spring '10 term at University of Phoenix.
 Spring '10
 webb

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