一、先圈出10个,再算一算。
$
\begin{array}{c}8 + 7 =
$
\begin{array}{c}6 + 7 =
$\begin{array}{c}
$
15
\\\begin{array}{c}\downarrow \quad \downarrow \\2
\quad 5
\\\downarrow \\10
\end{array} 13
\\\begin{array}{c}\downarrow \quad \downarrow \\4
\quad 3
\\\downarrow \\10
\end{array}$$
13
\\\begin{array}{c}\downarrow \quad \downarrow \\6
\quad 5
\\\downarrow \\11
\end{array} 14
\\\begin{array}{c}\downarrow \quad \downarrow \\4
\quad 1
\\\downarrow \\10
\end{array}$$\begin{array}{c}
15
+ 12
= 12
\\\begin{array}{c}\downarrow \quad \downarrow \\ \quad \\\downarrow \\\end{array} \\\begin{array}{c}\downarrow \quad \downarrow \\ \quad \\\downarrow \\ \end{array}$
答案:
一、15;2,5,10;13;4,3,10;6,5,11;4,1,10 二、13,13;14,14;15,15;12,12
二、比一比,算一算。

答案:
13 13 14 14 15 15 12 12
三、看懂图意,填一填。

8
+ 6
= 14
(支)7
+ 9
= 16
(个)6
+ 5
= 11
(个)
答案:
8+6=14 7+9=16 6+5=11
四、算一算,填一填。
$






\begin{array}{c}\begin{array}{c}\includegraphics[height= 0.5cm]{apple.png} - \includegraphics[height= 0.5cm]{pear.png} = 1 \\\includegraphics[height= 0.5cm]{apple.png} = (
$
8
)\end{array} \\\begin{array}{c}\includegraphics[height= 0.5cm]{apple.png} + \includegraphics[height= 0.5cm]{apple.png} = 16 \\\includegraphics[height= 0.5cm]{pear.png} = (\quad7
)\end{array} \\\includegraphics[height= 0.5cm]{apple.png} + \includegraphics[height= 0.5cm]{pear.png} = (\quad15
)\end{array}$
答案:
8 7 15
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