(2)45:4×5+ 1=2 1; 36:3×6+ 1= 19; 39:3×9+ 1=28; The rule is: the product of the left ten digits and the unit plus 1= the right, so 67: 6× 7+ 1 = 43, that is? =42

(3)63:6÷3=2; 93:9÷3=3; 4 1:4÷ 1=4; The rule is: the quotient of the left ten digits divided by the single digits = the right. So 82: 8 ÷ 2 = 4, that is to say? =4

Give it to me.