Răspuns :
a) 19 + 7 x 4 = 19 + 28 = 47
25 + 6 x 7 = 25 + 42 = 67
72 - 5 x 9 = 72 - 45 = 27
96 - 8 x 6 = 96 - 48 = 48
b) 36 + 3 x 9 + 43 = 36 + 27 + 43 = 106
84 + 6 x 7 + 26 = 84 + 42 + 26 = 152
75 - 18 : 6 + 54 = 75 - 3 + 54 = 126
98 - 81 : 9 + 32 = 98 - 9 + 32 = 121
c) 42 : 7 + 56 : 8 = 6 + 7 = 13
81 : 9 + 42 : 7 = 9 + 6 = 15
54 : 6 + 36 : 9 = 9 + 4 = 13
45 : 9 + 25 : 5 = 5 + 5 = 10
2.
a) 5 x 6 + 3 = 30 + 3 = 33
5 x ( 6 + 3 ) = 5 x 9 = 45
b) 4 x 8 + 2 = 32 + 2 = 34
4 x ( 8 + 2 ) = 4 x 10 = 40
c) 35 : 5 + 2 = 7 + 2 = 9
35 : ( 5 + 2 ) = 35 : 7 = 5
d) 36 : 6 + 3 = 6 + 3 = 9
36 : ( 6 + 3 ) = 36 : 9 = 4
25 + 6 x 7 = 25 + 42 = 67
72 - 5 x 9 = 72 - 45 = 27
96 - 8 x 6 = 96 - 48 = 48
b) 36 + 3 x 9 + 43 = 36 + 27 + 43 = 106
84 + 6 x 7 + 26 = 84 + 42 + 26 = 152
75 - 18 : 6 + 54 = 75 - 3 + 54 = 126
98 - 81 : 9 + 32 = 98 - 9 + 32 = 121
c) 42 : 7 + 56 : 8 = 6 + 7 = 13
81 : 9 + 42 : 7 = 9 + 6 = 15
54 : 6 + 36 : 9 = 9 + 4 = 13
45 : 9 + 25 : 5 = 5 + 5 = 10
2.
a) 5 x 6 + 3 = 30 + 3 = 33
5 x ( 6 + 3 ) = 5 x 9 = 45
b) 4 x 8 + 2 = 32 + 2 = 34
4 x ( 8 + 2 ) = 4 x 10 = 40
c) 35 : 5 + 2 = 7 + 2 = 9
35 : ( 5 + 2 ) = 35 : 7 = 5
d) 36 : 6 + 3 = 6 + 3 = 9
36 : ( 6 + 3 ) = 36 : 9 = 4
a 19+28=47
25+42=67
72-45=27
96-48=48
b 36+27+43=106
84+42+26=152
75-3+54=18
98-9+32=121
c 6+7=13
9+6=15
9+4=13
5+5=10
2. 30+3=33
5*9=45
32+2=34
4*8=32+2=34
7+2=9
35:7=5
36:6=6+3=9
36:9=4
Sper ca ti-am fost de ajutor. Si alta data.
25+42=67
72-45=27
96-48=48
b 36+27+43=106
84+42+26=152
75-3+54=18
98-9+32=121
c 6+7=13
9+6=15
9+4=13
5+5=10
2. 30+3=33
5*9=45
32+2=34
4*8=32+2=34
7+2=9
35:7=5
36:6=6+3=9
36:9=4
Sper ca ti-am fost de ajutor. Si alta data.