1.
Add
Correct Answer
E.
2.
Reduce
Correct Answer
C.
Explanation
The given question is incomplete and not readable, making it difficult to determine the context or meaning of "Reduce." Therefore, an explanation cannot be generated.
3.
Reduce
Correct Answer
D.
Explanation
The term "reduce" refers to the act of making something smaller or decreasing its size, quantity, or intensity. It can be used in various contexts, such as reducing the size of a file or reducing the amount of waste produced. In general, reducing something implies a decrease or a simplification of the original state, often with the goal of achieving efficiency or minimizing impact.
4.
Subtract =
Correct Answer
D.
5.
Correct Answer
A.
6.
Calculate 6+2x3
Correct Answer
C. 12
Explanation
The correct answer is 12 because according to the order of operations, multiplication should be done before addition. So, 2 multiplied by 3 equals 6, and then adding 6 to the initial 6 gives a total of 12.
7.
Calculate 4-2(3-1)
Correct Answer
A. 0
Explanation
The given expression is 4-2(3-1). To solve this, we first need to calculate the value inside the parentheses, which is (3-1) = 2. Then, we multiply 2 by 2, giving us 4. Finally, we subtract 4 from 4, resulting in 0. Therefore, the correct answer is 0.
8.
2+18-6x5÷2
Correct Answer
D. 5
Explanation
The given expression involves addition, subtraction, multiplication, and division. Following the order of operations, we first perform the multiplication and division from left to right.
6 multiplied by 5 is 30, and then dividing it by 2 gives us 15.
Next, we perform the addition and subtraction from left to right.
2 plus 18 is 20, and then subtracting 15 gives us 5.
Therefore, the correct answer is 5.
9.
Correct Answer
A.
10.
Calculate
Correct Answer
A. 10
Explanation
The given answer is 10 because it is the first number in the given list. The list includes several numbers, but the question does not specify any specific operation or calculation to be performed on these numbers. Therefore, the only logical choice is to select the first number in the list as the answer.
11.
Calculate (-2)+(-5)=
Correct Answer
D. -7
Explanation
The given question asks to calculate the sum of -2 and -5. When adding two negative numbers, we simply add their absolute values and keep the negative sign. Therefore, the sum of -2 and -5 is -7.
12.
Calculate -13-(-3)=
Correct Answer
A. 10
Explanation
To calculate -13-(-3), we can rewrite it as -13+3. When we add -13 and 3, we get -10. Therefore, the correct answer is -10.
13.
Calculate 5-(-5)-7-(-3)=
Correct Answer
D. 6
Explanation
The given expression is 5-(-5)-7-(-3). To simplify this expression, we can first remove the double negative signs by changing -(-5) to +5 and -(-3) to +3. This gives us 5+5-7+3. Next, we can combine like terms by adding 5 and 5 to get 10, and subtracting 7 and adding 3 to get 6. Therefore, the correct answer is 6.