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The sixth grade mathematics synchronous exercise requires the formula on page 44.45 of the first volume! ! !
There are three ways to do this.

16× 16=256(cm? )

16÷2 = 8 cm

3. 14×200.96cm?

256-200.96=55.04cm?

2 16× 16=256cm?

256×( 1-78.5%)

=256×2 1.5%

=256×0.2 15

=55.04cm?

3 16× 16=256(cm? )

256×78.5%=200.96(cm? )

256-200.96=55.04cm?

A: The area of the black part is 55.04 square centimeters.

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