0.25X48用4种方法简便怎么做 0.25乘48简便计算用两种定律怎么做?

0.78/0.25*4\u7528\u7b80\u4fbf\u65b9\u6cd5\u600e\u4e48\u505a

0.78/0.25*4
=0.78/\uff080.25*4\uff09
=0.78/1
=0.78
\u671b\u91c7\u7eb3\uff0c\u8c22\u8c22

0.25\u00d748
=0.25\u00d74\u00d712
=1\u00d712
=12
0.25\u00d7(40+4+4)
=0.25\u00d740+0.25\u00d74+0.25\u00d74
=10+1+1
=12

具体回答如下：

方法一：0.25x48=1/4x48=12

方法二：0.25x4x12=1x12=12

方法三：0.25x48=48÷4=12

方法四：0.25x4x12=1x12=12

乘法运算性质：

几个数的积乘一个数，可以让积里的任意一个因数乘这个数，再和其他数相乘。例如：(25×3 × 9)×4=25×4×3×9=2700。

两个数的差与一个数相乘，可以让被减数和减数分别与这个数相乘，再把所得的积相减。例如： (137-125)×8=137×8-125×8=96。

满意请采纳

1. 1/4x48=12
2. 0.25x4x12=1x12=12
3. 0.25x48=48÷4=12
4. 1/4x4x12=1x12=12

0.25X48鐢4绉嶆柟娉曠畝渚挎庝箞鍋
绛旓細鏂规硶涓.0.25X48=(1/4)X48=12.鏂规硶浜.0.25X48=0.25X4X12 =1X12 =12.鏂规硶涓.0.25X48=0.5X0.5X48 =0.5X24 =12.鏂规硶鍥.0.25X48=(0.5X6)X0.5X8)=3X4 =12.

0.25X48鐢4绉嶆柟娉曠畝渚挎庝箞鍋
绛旓細鏂规硶涓锛0.25x48=1/4x48=12 鏂规硶浜岋細0.25x4x12=1x12=12 鏂规硶涓夛細0.25x48=48梅4=12 鏂规硶鍥涳細0.25x4x12=1x12=12 涔樻硶杩愮畻鎬ц川锛氬嚑涓暟鐨勭Н涔樹竴涓暟锛屽彲浠ヨ绉噷鐨勪换鎰忎竴涓洜鏁颁箻杩欎釜鏁帮紝鍐嶅拰鍏朵粬鏁扮浉涔樸備緥濡傦細(25脳3 脳 9)脳4=25脳4脳3脳9=2700銆備袱涓暟鐨勫樊涓庝竴涓暟鐩镐箻锛屽彲...

0.25X48鐢4绉嶆柟娉曠畝渚挎庝箞鍋
绛旓細瑙ｏ細鏂规硶涓銆0.25X48=(1/4)X48=12銆傛柟娉曚簩銆0.25X48=0.25X4X12 =1X12 =12銆傛柟娉曚笁銆0.25X48=0.5X0.5X48 =0.5X24 =12銆傛柟娉曞洓銆0.25X48=(0.5X6)X0.5X8)=3X4 =12銆

0.25脳48绠渚璁＄畻
绛旓細=0.25x(4x12)=(0.25x4)x12 =1x12 =12 鎵浠0.25脳48绠渚璁＄畻鐨勬渶鍚庣粨鏋滄槸12銆

0.25脳48绠渚璁＄畻?
绛旓細鍥犱负鎴戜滑鐭ラ亾0.25脳4=1锛屾墍浠ヨ繖涓紡瀛愬彲浠ヨ浆鍖栦负0.25脳4脳12=12绠楃殑杩囩▼涓厛绠楃1姝ワ紝鍐嶇畻绗2姝ャ

鑳界畝绠鐨瑕佺畝绠 0.25x48?
绛旓細浣犲ソ锛岃繖閬撻绠渚绠楁硶灏辨槸鍒╃敤涔樻硶鍒嗛厤寰嬭绠椼傚師寮=0.25x(50-2)=0.25x50-0.25x2=12.5-0.5=12銆

...0.25脳1.25脳0.4脳8 39.5脳10.2-3.95脳2 鐨勭畝渚绠楁硶
绛旓細0.25X97=0.25X(100-3)=25-0.75=24.25 12.5X(20-0.8)=5X2.5X(20-0.8)=5X(50-2)=5X48=240 0.25X1.25X0.4X8=0.25X4X1.25X8=1.25X8=10 39.5X10.2-3.95X2=3.95X102-3.95X2=3.95X(102-2)=395

涓ょ鏂规硶鍋
绛旓細鍥炵瓟锛0.25x50-0.25x2

0.25脳49-0.25鐢ㄧ畝渚挎柟娉鍋氬嚭鏉
绛旓細0.25脳49-0.25鐢ㄧ畝渚挎柟娉鍋氬嚭鏉 =0.25x(49-1)=0.25x48 =0.25x4x12 =1x12 =12

0.25x48x1.25绠渚
绛旓細0.25涔樹互4 1.25涔樹互4 鍐嶄箻浠ヤ笁 鎶48鎷嗗垎灏卞ソ浜, 鐩稿綋浜1涔樹互5涔樹互3绛変簬 15

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