Magda381397ask
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Calculează grupând convenabil:
2 x 43 x 5 x 10 =
6 x 19 x 5 =
2x 13 x 50 =
2x 8 x 100 x 5 =
12 x 147 x 10 =
15 x 16 x 2 =
2x 25 x 2 x 60 =
4 x 68 x 25 x 10 =
va rog mult urgent​

Răspuns :

Jojoi54ask

Explicație pas cu pas:

2x43x5x10=

86x5x10

430x10=4300

6x19x5=

114x5=570

2x13x50=

26x50=1300

2x8x100x5=

16x100x5=

1600x5=8000

12x147x10=

1764x10=17640

15x16x2=

240x2=480

2x25x2x60=

50x2x60=

100x60=6000

4x68x25x10=

272x25x10=

6800x10=68000
43*10*2*5
430*10=4300

6*5*19=
30*19=570

2*50*13
100*13=1300

2*5*8*100
10*800=8000

12*10*146
120*146=17520

15*2*16
30*16=480

2*25*2*60
50*120=6000
4*25*68*10
100*68=680

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