Multiplication: Area Model

${a_100} left parenthesis, "C" Subscript, "a" 100 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

標籤:

無法辨識

${a_10} left parenthesis, "C" Subscript, "a" 10 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

標籤:

equals

left parenthesis, 20 , 1.7 , right parenthesis

${a_1} left parenthesis, "C" Subscript, "a" 1 , Baseline , "O" Subscript, "f" "f" "s" "e" "t" , Baseline , right parenthesis

標籤:

equals

left parenthesis, 41 , 1.7 , right parenthesis

${b_1} left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 1 , Baseline , right parenthesis

標籤:

equals

left parenthesis, negative 1.7 , negative 24.5 , right parenthesis

${b_10} left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 10 , Baseline , right parenthesis

標籤:

equals

left parenthesis, negative 1.7 , negative 10 , right parenthesis

${b_100} left parenthesis, negative "O" Subscript, "f" "f" "s" "e" "t" , Baseline , "C" Subscript, "b" 100 , Baseline , right parenthesis

標籤:

無法辨識

隱藏的標籤 left parenthesis, 0 , negative "b" , right parenthesis

標籤

equals

left parenthesis, 0 , negative 29 , right parenthesis

隱藏的標籤 left parenthesis, "a" , 0 , right parenthesis

標籤

equals

left parenthesis, 42 , 0 , right parenthesis

運算式 40: "b" Subscript, "a" "s" "e" , Baseline equals 10

運算式 41:

運算式 42:

運算式 43:

運算式 44:

Place Values

Products

Rectangle Centers

Rectangles

技術支援

42 • 29 = 1218

360

800