a)1640+2367=4007
4007-2367=1640 sau
4007-1640=2367
5318-995=4323
4323+995=5318
4607+3508=8115
8115-3508=4607 sau
8115-4607=3508
8763-5609=3154
3154+5609=8763
b) 3588+4270=7858
7858-4270=3588 sau
7858-3588=4270
8003-3860=4143
4143+3860=8003
5632+384=6016
6016-384=5632
6079-982=5097
5097+982=6079
c) 17×3=51
51:3=17 sau 51:17=3
43×2=86
86:2=43 sau 86:43=2
16×5=80
80:5=16 sau 80:16=5
24×3=72
72:24=3 sau 72:3=24
d) 55:5=11
11×5=55
64:2=32
32×2=64
75:3=25
25×3=75
96:6=16
16×6=96
Sper ca te-am ajutat! COROANA?
