=7.8×5.6+2.3×(10-5.6)
=7.8×5.6+2.3×10-2.3×5.6
=(7.8-2.3)×5.6+23
=5.5×5.6+23
=(5+0.5)×5.6+23
=5×5.6+0.5×5.6+23
=28+2.8+23
=53.8
7.8*5.6+2.3*4.4怎样简算?
7.8×5.6+2.3×4.4简算：=7.8*5.6+2.3*(10-5.6)=7.8*(10-4.4)+2.3*4.4 =(7.8-2.3)*5.6+2.3*10 =78-(7.8-2.3)*4.4 =5.5*5.6+23 =78-5.5*4.4 =30.8+23 =78-24.2 =53.8
7.8*5.6+2.3*4.4简便计算?
=43.68+10.12 =53.8 直接计算
7.8x5.6+2.3x4.4用简便方法计算急
=4*(7.8*1.6+2.3*1.1)=4*(12.48*2.53)=4*15.01 =60.04
7.8x5.6十2.3x4.4等于多少用简便计算
回答：4.4x2x5.6+4.4x2.3
7.8x5.6+2.3x4.4要简便算法,怎么算
7.8x5.6+2.3x4.4=4x(7.8x1.6+2.3x1.1)=4x(12.48x2.53)=4x15.01=60.04 先乘除后加减 直接运算也是可以的
7.8x5.6+2.3x4.4的简便算法
7.8x5.6+2.3x4.4 =（5.5+2.3）x5.6+2.3x4.4 =5.5x5.6+2.3x5.6+2.3x4.4 =5.5x5.6+2.3x（5.6+4.4）=5x5.6+0.5x5.6+23 =28+2.8+23 =53.8
7.8*5.6+2.3*4.4简便计算
7.8*5.6+2.3*4.4 =43.68+10.12 =53.8 直接计算
7.8×5.6+2.3×4.4用简便方法怎么做
7.8×5.6+2.3×4.4 =7.8×5.6+2.3×(10-5.6)=7.8×5.6+2.3×10-2.3×5.6 =(7.8-2.3)×5.6+23 =5.5×5.6+23 =(5+0.5)×5.6+23 =5×5.6+0.5×5.6+23 =28+2.8+23 =53.8
7、8X5、6十2、3x4、4怎么简算
7.8X5.6十2.3x4.4 =(2.3+5.5)×5.6+2.3×4.4 =2.3×5.6+5.5×5.6+2.3×4.4 =2.3×5.6+2.3×4.4+5.5×5.6 =2.3×（5.6+4.4）+5.5×2×2.8 =2.3×10+11×2.8 =23+（10+1）×2.8 =23+28+2.8 =51+2.8 =53.8 ...
7、8X5、6+2、3X4、4简便算法
7.8*5.6+2.3*4.4 =7.8*4.6+7.8+4.6*2.2 =4.6*（7.8+2.2）+7.8 =4.6*10+7.8 =46+7.8 =53.8
