Question

Which statements are true according to the order of the operations? A. 16-(4+7)=12+7=19 B. 10+(6÷3)=10+2=12 C. 7×6+4=7×10=70 D. 2+5×7=2+35=37

Answer 1

$A. \\ 16-(4+7)=12+7=19 - \hbox{wrong, parentheses first:} \\ 16-(4+7)=16-11=5 \\ \\ B. \\ 10+(6 \div 3)=10+2=12 - \hbox{correct} \\ \\ C. \\ 7 \times 6+4=7 \times 10=70 - \hbox{wrong, multiplication first:} \\ 7 \times 6+4=42+4=46 \\ \\ D. \\ 2+5 \times 7=2+35=37 - \hbox{correct}$

Statements B and D are true.