1.
(34 + 13) â€“ 4 = ? + 3
Correct Answer
D. 40
Explanation
To find the value of the missing number, we need to simplify the left side of the equation first. By performing the addition inside the parentheses, we get 47. Then, subtracting 4 from 47 gives us 43. Finally, adding 3 to 43 gives us the missing number, which is 46. However, none of the given answer choices match this result, so the correct answer is not available.
2.
7 x ? = 28 x 3
Correct Answer
E. 12
Explanation
To find the value of the missing number, we can divide both sides of the equation by 7. This gives us ? = (28 x 3) / 7. Simplifying this expression, we get ? = 84 / 7 = 12. Therefore, the missing number that satisfies the equation is 12.
3.
Calculate 5.99 + 16.02
Correct Answer
E. 22.01
Explanation
The correct answer is 22.01 because when you add 5.99 and 16.02 together, you get a sum of 22.01.
4.
Calculate 3.47 â€“ 1.20
Correct Answer
B. 2.27
Explanation
The correct answer is 2.27 because when you subtract 1.20 from 3.47, you get 2.27.
5.
Calculate 98.26 â€“ 62.89
Correct Answer
B. 35.37
Explanation
To calculate the difference between 98.26 and 62.89, we subtract the second number from the first. 98.26 - 62.89 equals 35.37. Therefore, the correct answer is 35.37.
6.
37 + ? = 95
Correct Answer
C. 58
Explanation
To find the missing number, we need to subtract 37 from 95. This will give us the value of the missing number. 95 - 37 = 58. Therefore, the missing number that when added to 37 equals 95 is 58.
7.
86 - ? = 32
Correct Answer
A. 54
Explanation
To find the missing number, we need to subtract the given number from 86. By subtracting 54 from 86, we get 32. Therefore, the missing number is 54.
8.
? + 104 = 210
Correct Answer
D. 106
Explanation
The correct answer is 106 because when we add 104 to it, we get 210.
9.
109 x ? = 218
Correct Answer
E. 2
Explanation
The given equation is asking for a number that, when multiplied by 109, equals 218. The only number that satisfies this condition is 2.
10.
6 + 9 + 15 = 15 x ?
Correct Answer
B. 2
Explanation
The equation given is 6 + 9 + 15 = 15 x ?. By calculating the left side of the equation, we get 30. To find the value of ?, we need to divide 30 by 15. The result of this division is 2, which is the answer.
11.
35 divided by ? = 10 + 7.5
Correct Answer
A. 2
Explanation
To find the missing number, we need to subtract 7.5 from 10, which equals 2. Therefore, the missing number is 2.
12.
100 divided by 4 = 67 - ?
Correct Answer
A. 42
Explanation
The given equation is incorrect as 100 divided by 4 does not equal 67. The correct answer is 25. However, the answer provided in the options is 42, which is not correct. Therefore, the given question is incomplete or not readable, and an explanation cannot be generated.
13.
32 x 9 = 864 divided by ?
Correct Answer
B. 3
Explanation
The correct answer is 3. To find the missing number, we need to divide 864 by 32 and 9. When we divide 864 by 32, we get 27. When we divide 864 by 9, we get 96. Therefore, the missing number is 3, as it is the only option that is not equal to the result of dividing 864 by either 32 or 9.
14.
45 / 9 = 12 - ?
Correct Answer
C. 7
Explanation
The given equation is 45 divided by 9 equals 12 minus what number. To find the missing number, we can solve the equation step by step. Dividing 45 by 9 gives us 5. Subtracting 5 from 12 gives us 7. Therefore, the missing number is 7.