125×[80+8] 36×68+68×64 37×101-37 47×98 108×8 92+9×92 = = = =
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/09/20 23:36:23
125×[80+8] 36×68+68×64 37×101-37 47×98 108×8 92+9×92 = = = = = = = = = = = = = = = =
用乘法分配律算....
用乘法分配律算....
125×[80+8]=125×80+125×8=10000+1000=11000
36×68+68×64=68x(36+64)=68x100=6800
37×101-37= 37×(100+1)-37=37x100+37x1-37=3700+37-37=3700
47×98= 47×(100-2)=47x100-2x47=4700-94=4606
108×8=(100+8)x8=100x8+8x8=800+64=864
92+9×92=92x1+9×92=92x(1+9)=92x10=920
很高兴能为你解答,若不明白欢迎追问,天天开心!
36×68+68×64=68x(36+64)=68x100=6800
37×101-37= 37×(100+1)-37=37x100+37x1-37=3700+37-37=3700
47×98= 47×(100-2)=47x100-2x47=4700-94=4606
108×8=(100+8)x8=100x8+8x8=800+64=864
92+9×92=92x1+9×92=92x(1+9)=92x10=920
很高兴能为你解答,若不明白欢迎追问,天天开心!
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20 =
92*36+92*64=?简便计算
5x-68=92解方程,
1/6×7+1/7×8+1/8×9+······+1/100×101=?
3200985=3×( )+2×( )+9×( )+8×( )+5×( ).括号里填什么数字?
68×37+62×68=?328×63+328×36×328=?简便方法计算!列式!
简便计算 125×93×8 8×(500+125) 47×163+37×47 4000÷125 17×99-83 25÷
99+98-97+96-95+94-93+92-91+90-89-37+98=
已知a=11×66+12×67+13×68+14×69+15×70÷11×65+12×66+13×67+14×68+15
(96+72分之72+36+25分之24)÷(32+73分之24+12+25分之8)=?能简算要简算
找规律:73一37=36 64一46=18 92一29=( ) 87一78=( )
36×111+888×8=?要用简便算!