一、口算+ = + = + = + = + = + =98148241271253742+ = + = + = + = + = + =3559161+ = + = + = + = + = + =1481642104187426742二、异分母计算+ = + = + = + = 861540212581570- = - = - = - =95125411095281542三、分数加减混合计算+ = + = + = + = 83654026879125+ = + - = + + = + + = 1095281562031025815709 + = - = + + = + + = 98541109528651418526+ + = + = + =54109215412954
