1. 看图填一填,算一算。
$36 + 28 = □$

想:个位上$( ) + ( ) = ( )$,满十向$( )位进( )$,个位上写$( )$;十位上$( ) + ( ) + ( ) = ( )$。
$36 + 28 = □$
想:个位上$( ) + ( ) = ( )$,满十向$( )位进( )$,个位上写$( )$;十位上$( ) + ( ) + ( ) = ( )$。
答案:

2. 列竖式计算。
$35 + 32 = $ $48 + 17 = $ $18 + 42 = $ $5 + 76 = $
$35 + 32 = $ $48 + 17 = $ $18 + 42 = $ $5 + 76 = $
答案:
67 65 60 81
3. 在$\square$里填上合适的数。
$48 + 24 = \square 2$ $39 + 14 = \square 3$ $50 + 28 = \square 8$
$55 + 8 = \square 3$ $37 + 12 = \square 9$ $34 + 16 = \square 0$
$29 + 43 = \square 2$ $47 + 3 = \square 0$ $32 + 6 = \square 8$
$48 + 24 = \square 2$ $39 + 14 = \square 3$ $50 + 28 = \square 8$
$55 + 8 = \square 3$ $37 + 12 = \square 9$ $34 + 16 = \square 0$
$29 + 43 = \square 2$ $47 + 3 = \square 0$ $32 + 6 = \square 8$
答案:
7 5 7 6 4 5 7 5 3
4. 算出每张卡片上两个数的和。
$\begin{array}{|c|}\hline 36 \\ 27 \\\hline\end{array}$ $\begin{array}{|c|}\hline 36 \\ 42 \\\hline\end{array}$ $\begin{array}{|c|}\hline 12 \\ 62 \\\hline\end{array}$ $\begin{array}{|c|}\hline 78 \\ 7 \\\hline\end{array}$ $\begin{array}{|c|}\hline 21 \\ 69 \\\hline\end{array}$ $\begin{array}{|c|}\hline 49 \\ 36 \\\hline\end{array}$
______ ______ ______ ______ ______ ______
$\begin{array}{|c|}\hline 36 \\ 27 \\\hline\end{array}$ $\begin{array}{|c|}\hline 36 \\ 42 \\\hline\end{array}$ $\begin{array}{|c|}\hline 12 \\ 62 \\\hline\end{array}$ $\begin{array}{|c|}\hline 78 \\ 7 \\\hline\end{array}$ $\begin{array}{|c|}\hline 21 \\ 69 \\\hline\end{array}$ $\begin{array}{|c|}\hline 49 \\ 36 \\\hline\end{array}$
______ ______ ______ ______ ______ ______
答案:
63 78 74 85 90 85
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