Question
Subtract the following :



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| $1.$ _____________ | $2.$ _____________ | $3.$ _____________ |
| $4.$ _____________ | $5.$ _____________ | $6.$ _____________ |
| $7.$ _____________ | $8.$ _____________ | $9.$ _____________ |
| $10.$ _____________ | $11.$ _____________ | $12.$ _____________ |
| $ $ |
$4 0$ | m | $ $ |
$6 8$ | cm | $ $ |
$5 2$ | m |
| $−$ | $1 6$ | m | $−$ | $4 3$ | cm | $−$ | $2 9$ | m |


| $ $ |
$9 6$ | $ $ |
$ $ |
$6 6$ | $ $ |
$ $ |
$3 5$ |
| $−$ | $1 9$ | $ $ |
$−$ | $1 8$ | $ $ |
$−$ | $1 4$ |



| $ $ |
$1 2$ | $ $ |
$ $ |
$5 0$ | $ $ |
$ $ |
$3 8$ |
| $+$ | $1 5$ | $ $ |
$+$ | $2 3$ | $ $ |
$−$ | $1 2$ |
