7918 + 542 < 80396 + 658
732 - 94 < 800 - 27
327 • 538 < 356 • 2001
386833:587>386833:659
a + 5 > a+3
b-11<b-8
c•9<c•14
d:6>d:18
50---100%
X---40%
40*50÷100=20
<span>а) (90 + 120 ) : 10) * 2 = 42.
в) 180 + (400 - 400) : 4) = 180.
б) 90 + (120 : (10 * 2) = 96.
г) 180 + (400 - (400 : 4) = 480. </span>
27+5=32
20+(7+5)=32
(20+7)+5=32