a, 4,86 * 0,25 * 40 = 4,86 * 10 = 48,6
b, 72,9 * 99 + 72 + 0,9 = 72,9 * 99 + 72,9 = 72,9 * 99 + 72,9 * 1 = 72,9 * 100 = 7290
c, 0,125 * 6,94 * 80 = 0,125 * 80 * 6,94 = 10 * 6,94 = 69,4
d, 096,28 * 3,527 + 3,527 * 3,72 = ( 096,28 + 3,72 ) * 3,527 = 100 * 3,527 = 352,7
a) 4,86 x 0,25 x 40
= 4,86 x 10
= 48,6
b) 72,9 x 99 + 72 + 0,9
= 72,9 x 99 + 72,9
= 72,9 x 99 + 72,9 x 1
= 72,9 x (99 + 1)
= 729
c) 0,125 x 6,94 x 80
= 0,125 x 80 x 6,94
= 10 x 6,94
= 69,4
d) 96,28 x 3,527 + 3,527 x 3,72
= 3,527 x (96,28 + 3,72)
= 3,527 x 100
= 352,7
\(a,4,86\times0,25\times40\)
\(=4,86\times10\)
\(=48,6\)
\(c,0,125\times6,94\times80\)
\(=\left(0,125\times80\right)\times6,94\)
\(=10\times6,94\)
\(=69,4\)
\(d,096,28\times3,527+3,527\times3,72\)
\(=3,527\times\left(096,28+3,72\right)\)
\(=3,527\times100\)
\(=352,7\)
4.86*10=48.6
7217.1+72+0.9=7290
6.94*10=69.4
3.527*99.55=351.11285
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