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为让小学中、高年级乃至中学搞好方程数学,在小学低年级数学教材中,已对方程作了孕伏。一、孕伏伊始教材:第一册 P.11三5,P.18例(即第11面练习三第5题,第18面的例题。下同),P.19七_3,P.22例、九_3,P.26、P.30、P.34例,P.45十九_7,P.47二十_(2、13),P.50二十一_2,P54二十二_(1、11),P.57二十三_2,P.61二十五_1,P.64二十六_2,P.67二十七_(1、11),P.70二十八_1,P79三十_(12).
In order to make elementary, middle and senior high school mathematics and mathematical equations, mathematics textbooks in the lower primary school, the equation has been pregnant volt. First, pregnant voltatus beginning textbook: the first volume P.11 three 5, P.18 cases (that is, the eleventh face of exercise three fifth questions, the first 18 examples), P.19 seven _3, P. 22 cases, nine _3, P.26, P.30, P.34 cases, P.45 nineteen_7, P.47 twenty _ (2,13), P.50 twenty-one, P54 Twenty-two _ (1,11), P.57 Twenty-three _2, P.61 Twenty-five _1, P.64 Twenty-six _2, P.67 Twenty-seven _ (1,11), P.70 twenty-eight _1, P79 thirty _ (12).