看图填空.
(1)横着看,每行有________只小猪,有________行.
加法算式:________,这是________个________相加.
乘法算式:________或________.
(2)竖着看,每列有________只小猪,有________列.
加法算式:________,这是________个________相加.
乘法算式:________或________.
(3)4个6的和与6个4的和都是________所以________×________=________×________.