Ordinea operatiilor si folosirea corecta a parantezelor.
32:(12-4)+18=; (32+40):9-8×1=; (56-20):4+9×9=; (16:4+24):7×8=; 100-(56+4×2-14:2)= 100-8×6+16:2= ; 79+2×7-8×10=; 67-5×9+72:8=.

Răspuns:

Explicație pas cu pas:

32 : ( 12 - 4) + 18 = 22

= 32 : 8 + 18 =

= 4 + 18 =

= 22

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(32 + 40 ) : 9 - 8 × 1 =

=  72 : 9 - 8 =

= 8 - 8 =

= 0

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(56 - 20 ) : 4 + 9 × 9 =

= 36 : 4 + 81 =

= 9 + 81 =

= 90

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(16 : 4+ 24 ) : 7 × 8 =

= ( 4 + 24 ) : 7 × 8 =

= 28 : 7 × 8 =

= 4 × 8 =

= 32

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100 - ( 56 + 4 × 2 - 14 : 2 ) =

= 100 - ( 56 + 8 - 7 ) =

= 100 - ( 64 - 7 ) =

= 100 - 57 =

= 43

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100 - 8 × 6 + 16 : 2 =

= 100 - 48 + 8 =

= 52 + 8 =

= 60

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79 + 2 × 7 - 8 × 10 = 13

= 79 + 14 - 80 =

= 93 - 80 =

= 13

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67 - 5 × 9 + 72 : 8 = 31

= 67 - 45 + 9 =

= 22 + 9 =

= 31