1) . 102,264,544,742,790,899,1058,2866,4915,8159,8514.
2). 9999,9005,9000,4464,2881,2814,1865,1598,1154,815,260,184.
3). a)692,693,694 ,695,696,697,698,699,700,701,702,703,704,705,706,707.
b)510,511,512,513,514,515,516,517,518,519,520,521.
c)223,224,225,226,227,228,229,230.
d)818,817,816,815,814,813,812,811,810,809,808,807,806,805,804,803,802,801,799.
4). o luam de la final,de la ultimul exercitiu.
a)190+22=212(e). b) 72:8=9(e). c) 2×9=18(e)
50+212=262(d) 90:9=10(d). 18×6=108(d)
396-262=134(c). 50:10=5(c). 108×1=108(c)
237-134=103(b). 35:5=7 (b) 108×12=1296(b)
359-103=256(a). 28:7=4(a). 1296×3=3888(a)
5). a+70-50=220
a+70=220+50
a+70=270
a=270-70
a=200.
6).a) 224-96:8+20×12= 6×137-27:9+170= 240+600-81:9+22= 517+500-56:8-3=
224-12+240= 822-3+170= 240+600-9+22= 517+500-7-3=
212+240= 819+170= 840-9+22= 1017-7-3=
452. 989. 831+22= 1010-3=
853. 1007.
b)124×8+63:7+20= 8×25+20×8+56= 81:9+27:3-10= 21:3-35:7+28=
992+9+20= 200+160+56= 9+9-10= 7-5+28=
1001+20= 360+56= 18-10= 2+28=
1021. 416. 8. 30.
sper ca te-am ajutat!!!❤❤❤
