你能用脱式计算吗?(1)86+44=86+4+______,=______+______,=______;(2)137+495=137+500-______;=______-______,=______.(3)67+78,=(60+70)+(______+______);=130+_____-数学
题文
你能用脱式计算吗? (1)86+44 =86+4+______, =______+______, =______; (2)137+495 =137+500-______; =______-______, =______. (3)67+78, =(60+70)+(______+______); =130+______, =______. |