Question

Вычислите устно
520+80=. 250•3= 960:3=
970-160=. 400•5= 960:30=
1000-900=. 14•7= 1500:500=
630+400=. 90•30= 4800:2=
Решите пж
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Answer 1

520+80=600
970-160=810
1000-900=100
630+400=1030
250×3=750
400×5=2000
14*7=98
90×30=2700
960:3=320
960:30=32
1500:500=3
4800:2=2400

Answer 2

520+80=600
250*3=750
960/3=320
970-160=810
400*5=2000
960/30=32
1000-900=100
14*7=98
1500/500=3
630+400=1030
90*30=2700
4800/2=2400