$90 + 510 =$ $20 + 700 =$ $800 + 40 =$
$640 + 140 =$ $730 - 460 =$ $410 - 60 =$
$930 - 50 =$ $30 + 910 =$ $220 + 20 =$
$205 + 108 =$ $900 - 710 =$ $70 + 190 =$
$320 - 30 =$
$640 + 140 =$ $730 - 460 =$ $410 - 60 =$
$930 - 50 =$ $30 + 910 =$ $220 + 20 =$
$205 + 108 =$ $900 - 710 =$ $70 + 190 =$
$320 - 30 =$
答案:
$690 - 150 =$ $80 + 300 =$ $470 + 290 =$
$20 + 760 =$ $770 - 580 =$ $790 - 640 =$
$390 - 280 =$ $930 - 610 =$ $800 + 90 =$
$910 - 190 =$ $20 + 100 =$ $10 + 200 =$
$580 + 20 =$
$20 + 760 =$ $770 - 580 =$ $790 - 640 =$
$390 - 280 =$ $930 - 610 =$ $800 + 90 =$
$910 - 190 =$ $20 + 100 =$ $10 + 200 =$
$580 + 20 =$
答案:
$280 + 60 =$ $30 + 630 =$ $830 - 30 =$
$630 - 360 =$ $810 - 240 =$ $210 - 150 =$
$381 - 156 =$ $990 - 90 =$ $840 - 370 =$
$500 - 40 =$ $471 - 127 =$ $739 - 165 =$
$310 - 204 =$
$630 - 360 =$ $810 - 240 =$ $210 - 150 =$
$381 - 156 =$ $990 - 90 =$ $840 - 370 =$
$500 - 40 =$ $471 - 127 =$ $739 - 165 =$
$310 - 204 =$
答案:
猜字谜,填一填。
$\begin{array}{r} 大家好\\ +大家好\\ \hline 438\end{array}$ 大=( ) 家=( ) 好=( )
$\begin{array}{r} 儿童节\\ +节童儿\\ \hline 544\end{array}$ 儿=( ) 童=( ) 节=( )
$\begin{array}{r} 大家好\\ +大家好\\ \hline 438\end{array}$ 大=( ) 家=( ) 好=( )
$\begin{array}{r} 儿童节\\ +节童儿\\ \hline 544\end{array}$ 儿=( ) 童=( ) 节=( )
答案:
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