Subtracting from the group or a number of things is what subtracting signifies in math, and the calculation can be defined as follows:
Subtraction calculation:
Following are the solution to the given subtraction equations:
For question 1:
A) 4.3 - (-0.9) = 4.3+ 0.9= 5.2 that is true
B) 4.3 - 0.9 = 5.2 that is false because answer is 3.4
C) -4.3 - 0.9 = 5.2 that is false because answer is -5.2
D) -4.3 - (-0.9) = -4.3 +0.9 = 5.2 that is false because answer is -3.4
For question 2:
[tex]\to \frac{3}{4} + (-\frac{1}{2})\\\\\to \frac{3}{4} -\frac{1}{2}\\\\\to \frac{3-2}{4}\\\\\to \frac{1}{4}\\\\[/tex]
Therefore, the answer is "Option C".
For question 3:
[tex]\to \frac{2}{3} - (-\frac{2}{3})\\\\\to \frac{2}{3} +\frac{2}{3}\\\\\to \frac{4}{3}\\\\[/tex]
Therefore, the answer is "Option B".
For question 4:
[tex]\to \frac{2}{5} + (-\frac{4}{5})\\\\\to \frac{2}{5} -\frac{4}{5}\\\\\to \frac{2-4}{5}\\\\\to \frac{-2}{5}\\\\[/tex]
Therefore, the answer is "Option B".
For question 5:
[tex]\to[/tex] 4 – (-6)
[tex]\to[/tex] 4 +6
[tex]\to[/tex] 10
Therefore, the answer is "Option D".
For question 6:
[tex]\to - \frac{2}{6} + (\frac{3}{2})\\\\\to - \frac{1}{3} + \frac{3}{2}\\\\\to \frac{2-9}{6}\\\\\to \frac{-7}{6}\\\\[/tex]
Therefore, the answer is "Option B".
For question 8:
[tex]\to \frac{3}{4} - (-\frac{1}{4})\\\\\to - \frac{3}{4} + \frac{1}{4}\\\\\to \frac{3+1}{4}\\\\\to \frac{4}{4} \\\\ \to 1[/tex]
Therefore, the answer is "Option D".
For question 9:
A) -3.4 + 5.7 = -9.1 that's is false because answer is 2.3
B) -3.4 + (-5.7) = -9.1 that's is true.
C) 3.4 + (-5.7) = -9.1 that's is false because answer is -2.3
D) 3.4 + 5.7 = -9.1 that's is false because answer is 9.1
Find out more about the subtraction here:
brainly.com/question/1927340
