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Jiangsu education printing plate fifth grade elementary school mathematics exercises and tests page 8 answers to 5 questions.
Book 1: S=(A+B)*H/2

=( 12+ 16)*2/2

=28*2/2

=56*2

=28 square meters

56/28 = 2 kg

Volume II: Solutions ......

5X=0.65

X=0.65/5

X=0. 13