Multiplication: Area Model

表达式32: left parenthesis, "C" Subscript, "a" 100 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

表达式33: left parenthesis, "C" Subscript, "a" 10 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

表达式34: left parenthesis, "C" Subscript, "a" 1 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

表达式35: left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 1 , Baseline , right parenthesis

表达式36: left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 10 , Baseline , right parenthesis

表达式37: left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 100 , Baseline , right parenthesis

表达式38: left parenthesis, 0 , negative "b" , right parenthesis

表达式39: left parenthesis, "a" , 0 , right parenthesis

表达式40: "b" Subscript, "a" "s" "e" , Baseline equals 10

表达式41:

表达式42:

表达式43:

表达式44:

Place Values

Products

Rectangle Centers

Rectangles

技术支持