Below is a function machine for adding thirteen.
$\editable{}$ | $+13$+13 | $\editable{}$ | ||
If we put $26$26 into the function machine, will we need to carry when we add the units?
Yes
No
If we put $18$18 into the function machine, will we need to carry when we add the units?
Yes
No
Which type of numbers will involve a carry when put into this function machine?
Numbers with a units digit of $8$8 only.
Numbers with a units digit from $0$0 to $6$6.
Numbers with a units digit from $7$7 to $9$9.
Numbers with a units digit of $6$6 only.
Below is a function machine for adding seventeen.
Below is a function machine for subtracting fourteen.
Below is an algorithm for adding two $2$2-digit numbers together.