Understand Division as Missing Factor - 3rd Grade Math
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What is $42 \div 6$ written as an unknown-factor equation?
What is $42 \div 6$ written as an unknown-factor equation?
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$6 \times \square = 42$. Division as finding what times $6$ equals $42$.
$6 \times \square = 42$. Division as finding what times $6$ equals $42$.
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What does $a \div b = c$ mean as an unknown-factor equation using multiplication?
What does $a \div b = c$ mean as an unknown-factor equation using multiplication?
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$b \times c = a$. Division reverses multiplication, so the factors switch positions.
$b \times c = a$. Division reverses multiplication, so the factors switch positions.
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What does $a \div b$ ask you to find when you think of division as an unknown factor?
What does $a \div b$ ask you to find when you think of division as an unknown factor?
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The number $c$ such that $b \times c = a$. Find what times $b$ gives $a$.
The number $c$ such that $b \times c = a$. Find what times $b$ gives $a$.
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What is $32 \div 8$ if you use the unknown-factor idea $8 \times \square = 32$?
What is $32 \div 8$ if you use the unknown-factor idea $8 \times \square = 32$?
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$4$. Since $8 \times 4 = 32$, the missing factor is $4$.
$4$. Since $8 \times 4 = 32$, the missing factor is $4$.
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What number makes the equation $6 \times \square = 42$ true?
What number makes the equation $6 \times \square = 42$ true?
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$7$. Since $6 \times 7 = 42$, the missing factor is $7$.
$7$. Since $6 \times 7 = 42$, the missing factor is $7$.
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What is $81 \div 9$ using $9 \times \square = 81$?
What is $81 \div 9$ using $9 \times \square = 81$?
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$9$. Since $9 \times 9 = 81$, the missing factor is $9$.
$9$. Since $9 \times 9 = 81$, the missing factor is $9$.
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Which multiplication equation matches the division equation $45 \div 9 = 5$?
Which multiplication equation matches the division equation $45 \div 9 = 5$?
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$9 \times 5 = 45$. Division means $9$ times what equals $45$.
$9 \times 5 = 45$. Division means $9$ times what equals $45$.
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What is $64 \div 8$ if you solve $8 \times \square = 64$?
What is $64 \div 8$ if you solve $8 \times \square = 64$?
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$8$. Since $8 \times 8 = 64$, the missing factor is $8$.
$8$. Since $8 \times 8 = 64$, the missing factor is $8$.
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What is $49 \div 7$ using the equation $7 \times \square = 49$?
What is $49 \div 7$ using the equation $7 \times \square = 49$?
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$7$. Division finds the missing factor: $7 \times 7 = 49$.
$7$. Division finds the missing factor: $7 \times 7 = 49$.
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What is the missing factor in $7 \times \square = 49$?
What is the missing factor in $7 \times \square = 49$?
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$7$. Since $7 \times 7 = 49$, the missing factor is $7$.
$7$. Since $7 \times 7 = 49$, the missing factor is $7$.
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What is $48 \div 6$ if you solve $6 \times \square = 48$?
What is $48 \div 6$ if you solve $6 \times \square = 48$?
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$8$. Since $6 \times 8 = 48$, the missing factor is $8$.
$8$. Since $6 \times 8 = 48$, the missing factor is $8$.
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What is $28 \div 4$ using the unknown-factor idea $4 \times \square = 28$?
What is $28 \div 4$ using the unknown-factor idea $4 \times \square = 28$?
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$7$. Division finds the missing factor: $4 \times 7 = 28$.
$7$. Division finds the missing factor: $4 \times 7 = 28$.
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What number makes $4 \times \square = 28$ true?
What number makes $4 \times \square = 28$ true?
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$7$. Since $4 \times 7 = 28$, the missing factor is $7$.
$7$. Since $4 \times 7 = 28$, the missing factor is $7$.
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What is the missing factor in $8 \times \square = 72$?
What is the missing factor in $8 \times \square = 72$?
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$9$. Since $8 \times 9 = 72$, the missing factor is $9$.
$9$. Since $8 \times 9 = 72$, the missing factor is $9$.
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What is $56 \div 7$ if you solve $7 \times \square = 56$?
What is $56 \div 7$ if you solve $7 \times \square = 56$?
Tap to reveal answer
$8$. Since $7 \times 8 = 56$, the missing factor is $8$.
$8$. Since $7 \times 8 = 56$, the missing factor is $8$.
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