Solve using the addition principle.m + 
= - 
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Use logic to solve the problem.During vacation time, two students met on a train. One asked the other how old he was. He replied, "The day before yesterday I was 15, and next year I will have my 18th birthday." On what date of the year did the two students meet?
A. Feb 29 B. Dec 31 C. Jan 1 D. Feb 28
Mathematics
Solve the problem.Use the possibility tree to count how many four-child families have two boys and two girls.
A. 8 families B. 2 families C. 6 families D. 4 families
Mathematics
Translate to an equation. Do not solve.84% of 59 is what?
A. 84% + 59 = y B. 84% × 59 = y C. 84% × y = 59 D. 84% = 59 × y
Mathematics
Solve.Find the difference of 92 and 9
A. 82 B. 84 C. 93 D. 83
Mathematics