24×□-□×15=18,□=______.
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24×□-□×15=18,□=______.
![24×□-□×15=18,□=______.](/uploads/image/z/19044393-33-3.jpg?t=24%C3%97%E2%96%A1-%E2%96%A1%C3%9715%3D18%EF%BC%8C%E2%96%A1%3D______%EF%BC%8E)
设方框是x,根据题意得:
24x-15x=18,
9x=18,
9x÷9=18÷9,
x=2.
故答案为:2.
24x-15x=18,
9x=18,
9x÷9=18÷9,
x=2.
故答案为:2.
填上适当的质数.24=______+______=______+______=______+______.
□+□+△+○=16□+△+△+○=13□+△+○+○=11□=______△=______○=______.
△+○=60,○+□=51,□+△=39,□=______.△=______,○=______.
○+□=91△+□=63△+○=46○=______△=______□=______.
125×(4+8)=______×______+______×______.
已知□+□+△=16,□+△+△=14,那么□=______,△=______.
填质数:21=______+______=______×______=______-______.
如果4A=5B,那么 AB=______;5=24÷______=______:15.
在算式□÷△=19…6中,除数最小是______这时被除数是______.
将0~9这十个数字分别填在右面的□里:□□×□=□□______,□□×□=□□______.
11+12+13+14+15=______×______.
3÷______=______÷24=75%=______折.