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The handicraft group plans to make 90 handicrafts, 28 in the morning and 36 in the afternoon. How much more can we do?
The handicraft group plans to make 90 handicrafts, 28 in the morning, 36 in the afternoon and 26 more.

Calculate the formula according to the meaning of the question:

90-28-36

=90-(28+36)

=90-64

=26

So I have to make 26 more songs to finish them all.

Arithmetic operation of addition and subtraction:

Integer addition and subtraction, the same digits are aligned, starting with single digits, and when the addition reaches ten digits, the higher digits will be entered; If the subtraction is not enough, subtract 1 from the high position. When this number is added to 10, it will decrease.

Subtraction is the inverse operation of addition; Multiplication is a special form of addition; Division is the inverse operation of multiplication; Power is a simple form of multiplication; The root is the inverse operation of power.