Could someone double check my answers.
1. Write the number in expanded form
684
answer: (6x100)+(8x10)+(4x1)
2.Give the place value for the indicated digit
8 in the number 138,350
answer: thousands
3. Write the following in the standard form of a number
Four hundred sixty thousand, two hundred sourty-eight
answer: 460,248
4. Name the property of addition that is illustrated.
4+3=3+4
answer: communtative property of addition
5.Perform the idicated addition
23,132 + 54,055
answer: 77,187
6. Find the number that is 432 more than 1,443
answer: 1,875
7. perform the indicated addition
2,580+675+36
answer: 3,291
8. Do the indicated subtraction
44,377-25,058
answer: 19,319
9. Turner agrees to buy a boat for 2,800 down and $129 a month for 48 month. What is the total cost of the boat.
answer: $6,192
10. Estimate the result in the following divisors problem. ( Remember to round divisors to the nearest ten and dividends to the nearest hundreds).
answer: 19r4
11. You wish to cover a bathroom floor with 1-square foot(1-ft2) tiles that cost $2 each. If the bathroom is rectangular,6 ft by 7 ft, how much will the cost?
answer: $84
12. Choose the correct list of the factors of the number
answer: 1,2,4 and 8
12. Choose the correct list of prime numbers between 10 and 30
answer: 11,13,17,19,and 29
13. Choose the correct prime factorization of the number 117
answer: 3x3x13
14.Choose the correct greatest common factor of 16 and 24
answer: 2
15. Are 3/21 and 5/34 equivalent fractions?
answer: no
16. Divide 4 1/5 /14. Write the result in simple form
answer: 3/10
17. Find the reciprocal of 8/3
answer: 3/8
18. A computer can excute 64 instructions per microsecond. How many instructions can it execute in 10 minute?
answer: 384,000,000,000
19. You make $140 a day on a job. What will you receive for working 3/4 day?
answer: $105
20.Multiply 13/15 x 2/3. Write your answer in simple form
answer: 26/45
21. Multiply 3 1/6 x 9/11 x 6/17. Write your answer in simple form
answer: 1 171/187
22. Evalute 120 cal/g x4 4 g. Be sure to use the proper units
answer: 480 cal
23. Divide 6/25 / 2/15. Write the result in simplest form
answer: 4/125
up to 10 ok
#10 makes no sense
#12 ???
you have two #12's
for the prime number one, you forgot prime 23
#14 , 8 divides into both of your numbers
Ps: could you not have checked most of these yourself with a calculator?
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choose the correct prime factorization of the number 117
1. The number in expanded form: 684 = (6 x 100) + (8 x 10) + (4 x 1)
To get the expanded form, you break down the number into its digit places. In this case, 6 is in the hundreds place, 8 is in the tens place, and 4 is in the ones place.
2. The place value for the digit 8 in the number 138,350 is thousands.
To determine the place value, you look at the position of the digit in relation to the decimal point. In this case, the digit 8 is in the thousands place.
3. Writing "Four hundred sixty thousand, two hundred forty-eight" in standard form: 460,248.
To convert the written form to standard form, you read the numbers as separate digits and arrange them according to their place value. In this case, the number is represented as 460,248.
4. The property of addition illustrated in 4+3=3+4 is the commutative property of addition.
The commutative property of addition states that the order of the numbers being added does not affect the sum. So, 4+3 is equal to 3+4.
5. Performing the indicated addition: 23,132 + 54,055 = 77,187.
To add the numbers, you line them up according to their place value and perform the addition operation. In this case, 23,132 + 54,055 equals 77,187.
6. Finding the number that is 432 more than 1,443: 1,875
To find the number that is 432 more than 1,443, you add 432 to 1,443. The result is 1,875.
7. Performing the indicated addition: 2,580 + 675 + 36 = 3,291.
To add the numbers, you line them up according to their place value and perform the addition operation. In this case, 2,580 + 675 + 36 equals 3,291.
8. Performing the indicated subtraction: 44,377 - 25,058 = 19,319.
To subtract the numbers, you line them up according to their place value and perform the subtraction operation. In this case, 44,377 - 25,058 equals 19,319.
9. Calculating the total cost of a boat with a down payment and monthly payment: $6,192.
To calculate the total cost of the boat, you add the down payment to the product of the monthly payment and the number of months. In this case, $2,800 + ($129 x 48) equals $6,192.
10. Estimating the result in the division problem: 19r4.
To estimate the result, round the divisor to the nearest ten and the dividend to the nearest hundred. In this case, the result is approximately 19 with a remainder of 4.
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