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Guess the mystery number It is less than 1000. Its tens digit is 2. Its hundreds digit is 4. its ones digit is double of tens digit.
A.
424
B.
422
C.
442
D.
Option 4
Correct Answer A. 424
Explanation The mystery number is 424 because it meets all the given conditions. It is less than 1000, its tens digit is 2, its hundreds digit is 4, and its ones digit is double of the tens digit (2 x 2 = 4).
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2.
There are ______ earrings in 2 pairs
A.
6
B.
4
C.
3
D.
Option 4
Correct Answer B. 4
Explanation The answer is 4 because in 2 pairs of earrings, there are a total of 4 individual earrings.
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3.
600 - 60 tens =
A.
60
B.
0
C.
660
Correct Answer C. 660
Explanation The question asks for the result when 60 tens are subtracted from 600. Since 1 ten is equal to 10, subtracting 60 tens is the same as subtracting 600. Therefore, the answer is 600 - 600 = 0.
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4.
30+40+30= ______
A.
200
B.
110
C.
100
D.
Option 4
Correct Answer C. 100
Explanation The given equation 30+40+30 equals 100.
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5.
Maria had 5 hens. Her uncle had 3 times more hens than her. How many eggs did uncle have ?
A.
25
B.
8
C.
15
Correct Answer C. 15
Explanation If Maria had 5 hens, her uncle would have 3 times more hens, which means he would have 5 x 3 = 15 hens. Each hen can lay 1 egg per day, so if the uncle had 15 hens, he would have 15 x 1 = 15 eggs. Therefore, the uncle had 15 eggs.