add -57+(-22)=-79
place numbers in acsending order 25,-13,8,-2,13,3,18=-13,-2,3,8,13,18,25
perform the indicated operation -21-(-9)/-21-(-21)=-12/-42
add -3/5+(8/35)=13/35
subtract -2.3-(-8.8)=6.5
To add -57 and -22, you simply sum the two numbers together. In this case, -57 + (-22) would be equal to -79.
To place the numbers 25, -13, 8, -2, 13, 3, and 18 in ascending order, you start by comparing the numbers. The smallest number in this set is -13. So, we place -13 first. Then we compare the remaining numbers, and the next smallest number is -2. Next, we have 3, then 8, then 13, then 18, and finally 25. Thus, the numbers in ascending order would be -13, -2, 3, 8, 13, 18, 25.
To perform the indicated operation -21 - (-9) / -21 - (-21), you follow the order of operations, BIDMAS (brackets, indices, division/multiplication, addition/subtraction). In this case, start by simplifying the brackets first. -21 - (-9) becomes -21 + 9, which is -12. Then, you simplify the division/subtraction. -12 / -21 - (-21) becomes -12 / -42. Finally, you divide -12 by -42 to get a result of 1/3.
To add -3/5 and 8/35, you need to have a common denominator. In this case, the least common denominator is 35, so we need to convert -3/5 to the equivalent fraction with a denominator of 35. Multiply both the numerator and denominator of -3/5 by 7 to get -21/35. Now, the addition becomes (-21/35) + (8/35), which equals (-21+8)/35. Simplifying the numerator, we get -13/35 as the result.
To subtract -2.3 and -8.8, you simply subtract the second number from the first. In this case, -2.3 - (-8.8) would be equal to -2.3 + 8.8, which gives us 6.5 as the result.