3 x 20 = 6 x 30 = 50 x 9 = 7 x 80 =
3 x 4 = 6 x 7 = 2 x 9 = 7 x 1 =
3 x 24 = 6 x 37 = 52 x 9 = 7 x 81 =

 

4 x 32
=
4 x 30
+
4 x
=
120 +
=
 
8 x 23
=
( 8 x )
+
( 8 x 3)
=
 +
=
 
5 x 67
=
( x )
+
( x
=
+  
=
 
39 x 6
=
30 x
+
(9 x
=
 +  
=
 
7 x 48
=
( x
+
( x
=
 +  
=
 
61 x 8
=
( x
+
( x
=
 +  
=
 

 

5 x 21 = 8 x 53 = 6 x 29 =  : 2 = 46
5 x 42 = 62 x 4 =  : 6 = 29  : 7 = 29
37 x 3 = 2 x 98 = 82 x 5 = 17 = : 9
74 x 3 = 31 x 8 = : 5 = 82  35 = : 7

72

On pourrait dessiner maisons différentes les unes des autres.

x x =   x x =   x x =  
4 x 2 x 3 = 3 x 4 x 5 = 7 x 1 x 6 =
6 x 3 x 2 = 5 x 3 x 4 = 5 x 9 x 2 =
2 x 5 x 7 = 5 x 6 x 4 = 4 x 5 x = 100