1 в. Фамилия:__________________________ Найди значение выражения : 40+30= ____ 60+5–20=______ 90–40=____ 34 – (15−9)=____ 50+3= ____ 36 –20+8=_____ 4+50= ____ 40+ (12 –8)=____ 45–5= ____ 30+ (25+5)=_____ 78–70=___ 90 – (36+4)=_____ 49+1=____ 70 –50+8=____ 90–1= ____ 50+20 –30=____ 6 + 8=___ 40 + 30=____ 9 + 7=___ 50 + 7=____ 13 – 5=___ 80 – 20=___ 12 – 7=___ 62 – 60=____ 76 – 6=___ 20 – 10 + 8=____ 100 – 70=____ 9 + 5 – 10=____ | 2в. Фамилия:_____________________________ Найди значение выражения: 60 –40=___ 70+4 –30=____ 40+30= ____ 45 – (14 –9)=_____ 70+5=____ 78 –50+6=____ 7+60=____ 40+ (45+5)=____ 67 –7=____ 60+ (14 –8)=____ 54 –50=____ 60 –30+6=____ 80 –1=____ 80 – (27+3)=____ 69+1= ___ 40+30 –20=_____ 14 – 7=____ 70 + 3=___ 15 – 9=___ 60 + 20=____ 6 + 7=____ 95 – 90 =____ 7 + 8=___ 100 – 30=_____ 54 – 4=____ 20 – 10 + 6=____ 90 – 30=___ 8 + 9 – 10=_____ |