human
Recognise and use efficient strategies for mental addition This is how Ron calculates the answer to \( 46+28 \) mentally "\( 46+20 \) is equal to \( 66 \). Then I am going to add on the \( 8\). \(66+8=74 \)" Ron uses the same method to calculate \( 37+56 \). Which of the following shows how he would do this? \( \begin{array}{c}7+6=13 \\ 30+13=43 \\ 43+50=93\end{array} \)
gpt
Does not copy a given method accurately