28 PUNE
125 + 957 + (1 075:43)
1132 - 375 - (1 024:32)
29+(11 (182 – 54))
(5.10-) – 2. (441:21 – 6)2 столбиком
125 + 957 + (1 075:43)
1132 - 375 - (1 024:32)
29+(11 (182 – 54))
(5.10-) – 2. (441:21 – 6)2 столбиком
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Answers & Comments
1) 125+957+(1075÷43) = 125+957+25 = 150+957=1107
2) 1132-375-(1024÷32) = 1132-375-32 = 1100-375=725
3) 29+(11×(18^2 -54)) = 29+(11×(324-54)) = 29+(11×270) = 29+2970 =2999
4) (5×10^2)-2×(441÷21-6)^2 = (5×100)-2×(441÷21-6)^2 = 500-2×(441÷21-6)^2 = 500-2×(21-6)^2 = 500-2×(15)^2 = 500-2×225 = 500-450 = 50
( ^ - этот знак означает степень)