Question

Parentheses are placed differently in each of the following expressions. Drag the tiles to match the correct answer with each of the expressions. Tiles may be used once, more than once, or not at all.16, 28, 88, 196,30 - 2 x 3 + 4 = ________( 30 - 2 ) x 3 + 4 = _______30 - 2 x ( 3 + 4) = ________(30 - 2) x (3 + 4 ) = ________

Answer 1

`\begin{gathered} 30-2*3+4 \\ 30-6+4 \\ 24+4=28 \\ \\ \therefore30-2*3+4=28 \end{gathered}`

Next:

`\begin{gathered} (30-2)*3+4 \\ 28*3+4 \\ 84+4=88 \\ \\ \therefore(30-2)*3+4=88 \end{gathered}`

Next:

`\begin{gathered} 30-2*(3+4) \\ 28*7 \\ =196 \\ \\ \therefore30-2*(3+4)=196 \end{gathered}`

Lastly:

`\begin{gathered} (30-2)*(3+4) \\ 28*7 \\ =196 \\ \\ \therefore(30-2)*(3+4)=196 \end{gathered}`