Add and Subtract Multi-Digit Numbers - 4th Grade Math
Card 1 of 20
What is $35{,}435 + 28{,}079$?
What is $35{,}435 + 28{,}079$?
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$63{,}514$. $5+9=14$ (carry $1$), continue adding left.
$63{,}514$. $5+9=14$ (carry $1$), continue adding left.
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What is $407{,}586 + 92{,}414$ using the standard algorithm?
What is $407{,}586 + 92{,}414$ using the standard algorithm?
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$500{,}000$. Multiple carries create the round sum of half a million.
$500{,}000$. Multiple carries create the round sum of half a million.
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Find the value of $x$: $x + 28{,}645 = 90{,}000$.
Find the value of $x$: $x + 28{,}645 = 90{,}000$.
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$61{,}355$. Subtract: $90{,}000 - 28{,}645 = 61{,}355$.
$61{,}355$. Subtract: $90{,}000 - 28{,}645 = 61{,}355$.
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Identify the missing digit: $9\square{,}450 - 3{,}275 = 66{,}175$.
Identify the missing digit: $9\square{,}450 - 3{,}275 = 66{,}175$.
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$9$. $66{,}175 + 3{,}275 = 69{,}450$, so missing digit is 9.
$9$. $66{,}175 + 3{,}275 = 69{,}450$, so missing digit is 9.
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Identify the missing digit: $58{,}7\square 4 + 12{,}356 = 71{,}140$.
Identify the missing digit: $58{,}7\square 4 + 12{,}356 = 71{,}140$.
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$4$. $71{,}140 - 12{,}356 = 58{,}784$, so missing digit is 4.
$4$. $71{,}140 - 12{,}356 = 58{,}784$, so missing digit is 4.
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Find the value of $y$: $75{,}000 - y = 18{,}492$.
Find the value of $y$: $75{,}000 - y = 18{,}492$.
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$56{,}508$. Subtract: $75{,}000 - 18{,}492 = 56{,}508$.
$56{,}508$. Subtract: $75{,}000 - 18{,}492 = 56{,}508$.
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What is $48{,}376 + 27{,}519$ using the standard algorithm?
What is $48{,}376 + 27{,}519$ using the standard algorithm?
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$75{,}895$. Add column by column from right to left, carrying when needed.
$75{,}895$. Add column by column from right to left, carrying when needed.
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What is $90{,}005 + 9{,}997$ using the standard algorithm?
What is $90{,}005 + 9{,}997$ using the standard algorithm?
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$100{,}002$. Carry from ones to tens, tens to hundreds, etc.
$100{,}002$. Carry from ones to tens, tens to hundreds, etc.
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What is $6{,}708 + 3{,}295$ using the standard algorithm?
What is $6{,}708 + 3{,}295$ using the standard algorithm?
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$10{,}003$. Sum each place value, carrying 1 when sum ≥ 10.
$10{,}003$. Sum each place value, carrying 1 when sum ≥ 10.
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What is $1{,}000{,}000 - 999{,}998$ using the standard algorithm?
What is $1{,}000{,}000 - 999{,}998$ using the standard algorithm?
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$2$. After borrowing through all places, difference is 2.
$2$. After borrowing through all places, difference is 2.
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What is $6{,}000 - 2{,}999$ using the standard algorithm?
What is $6{,}000 - 2{,}999$ using the standard algorithm?
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$3{,}001$. Borrow from 6,000 to subtract 2,999.
$3{,}001$. Borrow from 6,000 to subtract 2,999.
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What is $800{,}000 - 456{,}789$ using the standard algorithm?
What is $800{,}000 - 456{,}789$ using the standard algorithm?
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$343{,}211$. Borrow across multiple zeros from 800,000.
$343{,}211$. Borrow across multiple zeros from 800,000.
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What is $40{,}500 - 19{,}875$ using the standard algorithm?
What is $40{,}500 - 19{,}875$ using the standard algorithm?
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$20{,}625$. Borrow from 40,500 to complete the subtraction.
$20{,}625$. Borrow from 40,500 to complete the subtraction.
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What is $70{,}000 - 6{,}725$ using the standard algorithm?
What is $70{,}000 - 6{,}725$ using the standard algorithm?
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$63{,}275$. Borrow from ten-thousands to subtract in each column.
$63{,}275$. Borrow from ten-thousands to subtract in each column.
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What is $100{,}000 - 1$ using the standard algorithm?
What is $100{,}000 - 1$ using the standard algorithm?
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$99{,}999$. Subtracting 1 from 100,000 requires borrowing from each place.
$99{,}999$. Subtracting 1 from 100,000 requires borrowing from each place.
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What is $50{,}000 - 27{,}845$ using the standard algorithm?
What is $50{,}000 - 27{,}845$ using the standard algorithm?
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$22{,}155$. Borrow across zeros by treating 50,000 as 49,999 + 1.
$22{,}155$. Borrow across zeros by treating 50,000 as 49,999 + 1.
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What is $84{,}261 - 37{,}498$ using the standard algorithm?
What is $84{,}261 - 37{,}498$ using the standard algorithm?
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$46{,}763$. Borrow from left columns when top digit is smaller.
$46{,}763$. Borrow from left columns when top digit is smaller.
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What is $72{,}040 + 19{,}960$ using the standard algorithm?
What is $72{,}040 + 19{,}960$ using the standard algorithm?
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$92{,}000$. Ones cancel out; tens carry makes exactly 92,000.
$92{,}000$. Ones cancel out; tens carry makes exactly 92,000.
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What is $999{,}999 + 1$ using the standard algorithm?
What is $999{,}999 + 1$ using the standard algorithm?
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$1{,}000{,}000$. Adding 1 to all 9s creates a cascade of carries.
$1{,}000{,}000$. Adding 1 to all 9s creates a cascade of carries.
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What is $65{,}432 + 8{,}568$ using the standard algorithm?
What is $65{,}432 + 8{,}568$ using the standard algorithm?
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$74{,}000$. Add each column; carries make the sum exactly 74,000.
$74{,}000$. Add each column; carries make the sum exactly 74,000.
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