6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9=

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6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9=
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6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9=
6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9=
 

6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9=
6.4:8=:80=80分之64=5分之4
16:3分之2=48:2=24
0.375:0.625=375:625=3:5
8:9分之8=72:8=9
8:8分之9=72:

6.4:0.625= 16:2/3= 0.375:0.625= 8:8/9= 6又2/1-3又8/3-0.625= 0.625=( ):( )= =(64 )÷16=( )%0.625=( ):( )= =( )÷16=( )% 计算机数制转换题!(1011011)2 =( )10=( )16 =( )8(110111101)2 =( )10=( )16 =( )8(11001.11)2=( )10=( )16 =( )8(1010001.101)2=( )10=( )16 =( )8(205)16= ( )10=( )2 =( )8(3BD)16= ( )10=( )2 =( )8(B5.D)16= ( )10 四、解方程 1.2+2X=6.4÷2 (X+1.7)÷3=1.4四、解方程 1.2+2X=6.4÷2 (X+1.7)÷3=1.4 26.4X+18X=66.6(X-16)×5=45(检验) x+3.2=4.6 x-1.6=4 15-x=2 1.6x=6.4 15-x=2+ 2.1÷x=3的检验是什么 0.625=( )÷16=( )=( )分之15 1+1=2-0=3-1=4-? 关于正反比例数学题让x和y两个量成为正比例,x=3 y=8 x=?y=16 x=12 y=?x=?y=40 x=38 y=?x=?y=0.2 让x和y两个量成为反比例 x=3 y=8 x=?y=16 x=12 y=?x=?y=40 x=38 y=?x=?y=0.2 1=4,2=8,3=16,4=? 1=4,2=8,3=16,4=? ① ×2+4×-2=0 ②×2+2×-3=5 (2×-1)2=16 (×① ×2+4×-2=0 ②×2+2×-3=5 (2×-1)2=16 (×-1)2+6(×-1)-16=0 3.35*6.4*2+6.7*3.6=? 10除以()=0.625 1/3-1/4= 1/3+1/5= 3/16+1/2=1/3-1/4= 1/3+1/5= 3/16+1/2= 1-5/7= 3/5-1/5= 口算.5×7/10= 8/21×7/16= 3-1/2= x+3.2=4.6 x-1.6=4 15-x=2 1.6x=6.4 15-x=2+ 2.1÷x=3 的检验啥检验哦 1.直接写出得数:× = ÷= + = - =+ = - = × = ÷ =- = + = 14 × = × =2.简便计算.(+ )÷ +3.6 — + 6.4 ×3.8 — 3.8× × + × ÷ + ÷ 3.脱式计算.24 — 24 × ×÷ 12 ÷ ×抱歉