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1 想一想，填一填，算一算。
$□ ◯ □ =□$
$\begin{array}{r}42\\ +24\\ \hline □ □ \end{array}$
$□ ◯ □ =□$
$\begin{array}{r}85\\ -33\\ \hline □ □ \end{array}$
$□ ◯ □ =□$
$\begin{array}{r}42\\ +24\\ \hline □ □ \end{array}$
$□ ◯ □ =□$
$\begin{array}{r}85\\ -33\\ \hline □ □ \end{array}$
答案
42 + 24 = 66
$\begin{array}{r}42\\ +24\\ \hline 66\end{array}$
85 - 33 = 52
$\begin{array}{r}85\\ -33\\ \hline 52\end{array}$
$\begin{array}{r}42\\ +24\\ \hline 66\end{array}$
85 - 33 = 52
$\begin{array}{r}85\\ -33\\ \hline 52\end{array}$
2 看图列式计算。
$□ ◯ □ =□$(个)
$□ ◯ □ =□$(朵)
$□ ◯ □ =□$(个)
$□ ◯ □ =□$(朵)
答案
35 + 43 = 78
98 - 47 = 51
98 - 47 = 51
