口算训练(1) 口算训练(1) 1+2= 3+2= 4-1= 1+2= 3+2= 4-1= 3+0= 3-2= 2+2= 3+0= 3-2= 2+2= 5-4= 1+1= 3-3= 5-4= 1+1= 3-3= 1+3= 3-1= 4-2= 1+3= 3-1= 4-2= 2+1= 4+1= 0+4= 2+1= 4+1= 0+4= 3-0= 4-0= 5+0= 3-0= 4-0= 5+0= 5-3= 3+1= 2-0= 5-3= 3+1= 2-0= 4+0= 0+1= 0-0= 4+0= 0+1= 0-0= 1-0= 5-0= 0+0= 1-0= 5-0= 0+0= 0+2= 0+5= 1-1= 0+2= 0+5= 1-1= 2-2= 5-5= 4-4= 2-2= 5-5= 4-4= 2+3= 1+0= 1+4= 2+3= 1+0= 1+4= 口算训练(2) 口算训练(2) 3+2= 3+0= 4-3= 3+2= 3+0= 4-3= 3+1= 3-3= 2+3= 3+1= 3-3= 2+3= 5-2= 1+0= 3-1= 5-2= 1+0= 3-1= 1+4= 3-0= 4-1= 1+4= 3-0= 4-1= 1+1= 4+0= 0+3= 1+1= 4+0= 0+3= 3-1= 4-4= 5-2= 3-1= 4-4= 5-2= 5-4= 3-2= 2-1= 5-4= 3-2= 2-1= 4+1= 0+1= 1-1= 4+1= 0+1= 1-1= 4-3= 5-5= 0+2= 4-3= 5-5= 0+2= 2+2= 0+4= 1-0= 2+2= 0+4= 1-0= 4-2= 5-0= 4-0= 4-2= 5-0= 4-0= 2+1= 1+3= 2-2= 2+1= 1+3= 2-2= 口算训练(3) 口算训练(3) ( )+2=3 3+( )=5 4-( )=3 ( )+2=3 3+( )=5 4-( )=3 ( )+0=3 3-( )=1 ( )+2=4 ( )+0=3 3-( )=1 ( )+2=4 5-( )=1 ( )+1=2 3-( )=0 5-( )=1 ( )+1=2 3-( )=0 1+( )=4 ( )-1=2 ( )-2=2 1+( )=4 ( )-1=2 ( )-2=2 2+( )=3 ( )+1=5 0+( )=4 2+( )=3 ( )+1=5 0+( )=4 3-( )=3 ( )-0=4 ( )+0=5 3-( )=3 ( )-0=4 ( )+0=5 ( )-3=2 3+( )=4 2-( )=2 ( )-3=2 3+( )=4 2-( )=2 ( )+0=4 0+( )=1 ( )-0=0 ( )+0=4 0+( )=1 ( )-0=0 ( )-0=1 5-( )=5 0+( )=0 ( )-0=1 5-( )=5 0+( )=0 ( )+2=2 0+( )=5 ( )-1=0 ( )+2=2 0+( )=5 ( )-1=0 2-( )=0 ( )-5=0 4-( )=0 2-( )=0 ( )-5=0 4-( )=0 2+( )=5 ( )+0=1 ( )+4=5 2+( )=5 ( )+0=1 ( )+4=5 口算训练(4) 口算训练(4) 3+( )=5 3+( )=3 ( )-3=1 3+( )=5 3+( )=3 ( )-3=1 3+( )=4 3-( )=0 2+( )=5 3+( )=4 3-( )=0 2+( )=5 5-(...