小学四年级数学题计算125乘(()+8)=125乘20+()乘8括号里应该填多少 小明在计算125乘以(口十8)时,把题目写成125乘以口十8...
\uff08125+8\uff09\u4e588 12\u4e58\uff08324-285\uff09\u966426 \u7528\u6700\u7b80\u4fbf\u7684\u65b9\u6cd5\u8ba1\u7b97\u3002 \u56db\u5e74\u7ea7\u6570\u5b66\u9898\u5dee992
125\u00d7\uff08\u25a1+8\uff09=125\u00d7\u25a1+125\u00d78
\uff08125\u00d7\u25a1+125\u00d78\uff09-\uff08125\u00d7\u25a1+8\uff09=125\u00d78-8=992
\u624b\u673a\u7eaf\u624b\u6253\uff0c\u6c42\u91c7\u7eb3~~
绛旓細125*锛20+8锛=125*20+锛125锛*8
绛旓細125*24 = 3000
绛旓細125涔((20)+8)=125涔20+(8)涔8鎷彿
绛旓細涔樹互4鐒跺悗闄や互4,125*100=12500,12500/4=3125,2,125*25 =125*(100/4)=125*100/4 =12500/4 =3125,2,125*25=(100+25)*25 =100*25+25*25 =2500+625 =3125,1,
绛旓細鐢ㄤ箻娉曞垎閰嶅緥锛125脳88 =125脳锛80锛8锛=125脳80+125脳8 =10000+1000 =11000
绛旓細=125x锛8x9锛=锛125x8锛墄9 =1000x9 =9000 杩欑棰樻敞鎰忔壘8鍜125锛4鍜25绛変箻鍦ㄤ竴璧锋槸鏁寸櫨鐨勬暟
绛旓細125脳5脳4锛岃繖涓鍦ㄨ繘琛岀畝渚璁$畻鏃讹紝鍙互鍏堢敤涔樻硶鐨勪氦鎹㈠緥锛屾妸125脳4浜ゆ崲浣嶇疆鍚庡厛杩涜璁$畻寰500锛屽啀鐢500x5=2500 125x5x4 =125x4x5 =500x5 =2500
绛旓細涔樻硶缁撳悎寰
绛旓細125*24 = 125*8*3 = 1000*3 = 3000鍥涘勾绾ф暟瀛9濂璁$畻棰樺皬瀛︽暟瀛鍥涘勾绾ц绠楅杩囧叧缁冧範涓涓銆佽浣犲彛绠椼0.38+0.6= 155-(60-55)= 64.2+5.7= 643-27-73=0.97-0.09= 12.8-9.86= 17.08-4.58 = 9900梅25梅4=3.5+0.6= 5-0.15= 4.35+5.35= 99脳55+55= 0.81+0.09= 0梅78= 60-20梅5= 47脳25脳4...
绛旓細绠楁硶1锛125x锛4x5锛=125x20=2500 绠楁硶2锛锛125x4锛墄5=500x5=2500