1)3*6=18(т.) 2)62+18=80(т) ответ 80 тонн
1)3*6=18(т.)
4x-8
при -1:
4×(-1)-8= -4-8= -12
при 0.5
4×0.5-8= -6
при 4
4×4-8=8
при -3
4×(-3)-8= -12-8= -20
при 0.9
4×0.9-8= -4.4
8-4x
при -1
8-4×(-1)=8+4=12
при 0.5
8-4×0.5=6
при 4
8-4×4= -8
при -3
8-4×(-3)=8+12=20
при 0.9
8-4×0.9=4.4
30дм-300см,300см больше чем 160 см
1) (-546) + (-9454) = -546 - 9454 = -10000
2) -9045 + 9045 = 0
3) +4494 + (-4494) = 4494 - 4494 = 0
4) (-3375) + (+6625) = -3375 + 6625 = 3250
5) (+4086) + 4086 = 4086 + 4086 = 8172
6) 3774 - (+213) = 3774 - 213 = 3561
7) 0 - (-8429) = 0 + 8429 = 8429
8) -5586 - (-25) = -5586 + 25 = -5561
9) +9694 - 0 = 9694 - 0 = 9694
10) (+67) + (-4461) = 67 - 4461 = -4394
11) (-5459) - 3509 = -5459 - 3509 = -8968
12) 0 + (+1271) = 1271