4x4 block, only numbers count to yellow blocks:

0 0 0 0 0
0 1 2 3 0
0 4 5 6 0
0 7 8 9 0
0 0 0 0 0

0 = not important, 0 = math tasks

this same by 6x6, 7x7....

Thanks to this Users for help:
http://psteamcommunity.yuanyoumao.com/id/254668612

http://psteamcommunity.yuanyoumao.com/profiles/76561198024589732

:-7 => 2
-82 => 2
x5 => 3
+34 => 3

+89 => 4
-64 => 4
x4 => 2
:-5 => 3
x2 => 7
-57 => 7

x8 => 2
+72 => 2
x8 => 8
+49 => 3
:-4 => 4
-46 => 7

:-3 => 4
x3 => 3
-82 => 15
x5 => 14
-55 => 14
+88 => 15
x2 => 15
:3 => 7

x3 => 9
x6 => 14
:-8 => 16
-93 => 21
-86 => 2
-53 => 21
:-5 => 12
x2 => 10
:-7 => 3
+44 => 6

-92 => 2
-4 => 2
:-9 => 8
-28 => 16
x-5 => 23
+63 => 23
-93 => 24

:-10 => 7
x4 => 13
:9 => 5
-94 => 23
:2 => 15
+45 => 33
-8 => 21
-60 => 33
:-6 => 34
+13 => 5
-8 => 25
-100 => 12

task => x down => x right

/(-7) => 7 => 5
/7 => 4 => 3
/7 => 5 => 4
/(-9) => 2 => 4
/(-5) => 5 => 6
/(-2) => 5 => 7
*6 => 4 => 2
+85 => 1 => 2
+76 => 1 => 3
-79 => 1 => 5
-64 => 1 => 6
-52 => 2 => 3
+43 => 5 => 4
-83 => 7 => 6

task => x down => x right

/(-9) => 7 => 6
/7 => 3 => 4
/5 => 2 => 4
/(-4) => 4 => 3
/4 => 1 => 7
/3 => 6 => 5
*10 => 5 => 4
*3 => 2 => 6
-79 => 1 => 6
-8 => 4 => 2
+54 => 2 => 4
+32 => 3 => 4

complete the 2nd endless level



complete the 3rd endless level



complete the 4th endless level



complete the 5th endless level



complete the 6th endless level



complete the 7th endless level



complete a random endless level in the random endless mode




All 7 endless level achievements can be unlocked by only clicking in this mode on the go to the next puzzle button !!!