571789.5+7=— + — = — ÷ — = 443898+11=1981940-340=— ÷ — = 70% + — = 99511+70=8113960÷60=— ÷ — = — × — = 723283-0.4=140.9×0.6=4 + — = 7 ÷ — =337.5÷0.5= 1115.8-0.94= — × — = 4 × — = 8493÷0.02=83511.5×0.9=— + — = — × — = 9263442+26=1326 ÷ 13 + 42 × 2 32%x + 29 = 58
0.6 + 9.7 + 9.4 + 0.3 2.5 × 32 × 12.5
2 : x = 8 : 6.6 6x + 0.5×9 = 6.5
( 1 — 5 9 2 + — + — )×64 4 8 1 — ÷ 25 + 7 — × 1 — 8 8 25 9 — × 4 — ÷ 9 — × 4 — 4 5 4 5 6 — : x = 1 — : 0.3 7 4 4 — + 7 — - 1 — + 1 — 5 8 5 8 50%x + 25 = 60 x × 1 — = 6 — 5 7 2 - 1 — + 5 — 6 6 6 — + 1 — - 1 — 5 8 5 4 — × 2 — × 5 — 5 5 4
5 5 1 1748+19= — ÷ — = — × — = 6 6 4 857-47= 13 4 1 780+210= — - — = 95% + — = 3 3 5 28+90= 2 6 1 1960÷60= — + — = — ÷ — = 3 7 5 821-0.1= 10 10.9×0.7= 3 ÷ — = 8 - — =9 88.4÷0.2= 6 1 27.53-0.13= — + — = 4 ÷ — = 7 9 38+0.16= 7 1 4 76+0.87= — ÷ — = — + — = 8 7 5 81.5-0.21= 1133 ÷ 11 + 23 × 3 40%x - 21 = 50
4.3 + 4.9 + 5.7 + 5.1 25 × 0.32 × 1.25
8 : x = 4 : 7.9 8x - 0.5×5 = 5.5
( 4 — 5 1 3 + — + — )×96 4 8 1 — ÷ 49 + 5 — × 1 — 6 6 49 9 — × 6 — ÷ 9 — × 6 — 4 3 4 3 1 — : x = 7 — : 0.6 8 8 1 — + 6 — - 1 — + 1 — 2 7 2 7 20%x + 20 = 52 x ÷ 4 — = 4 — 5 3 5 - 1 — - 5 — 6 6 9 — + 1 — - 1 — 8 9 8 9 — × 2 — × 10 — 10 7 9
7 7 1 512.6÷0.09= — ÷ — = — × — = 6 6 2 488+48= 11 2 5 970+410= — + — = 60% + — = 7 7 6 17+70= 9 4 1 9390÷30= — × — = — ÷ — = 8 5 4 837-0.5= 1 10.15×0.8= 3 - — = 8 - — =7 46.4÷0.4= 1 1 18.75+0.12= — × — = 9 ÷ — = 4 9 311.2÷0.07= 8 1 2 16-0.28= — + — = — + — = 7 7 3 63.7+0.12= 1818 ÷ 18 + 91 × 5 20%x - 18 = 39
4.1 + 8.7 + 5.9 + 1.3 0.25 × 3.2 × 12.5
6 : x = 32 : 2.9 8x + 0.5×9 = 7.5
( 1 — 1 7 2 + — + — )×64 4 8 1 — ÷ 21 + 3 — × 1 — 4 4 21 3 — × 8 — ÷ 3 — × 8 — 2 5 2 5 4 — : x = 9 — : 0.6 5 8 4 — + 5 — + 1 — + 1 — 5 6 5 6 4%x - 28 = 51 x ÷ 7 — = 1 — 8 3 8 - 1 — - 7 — 8 8 7 — + 5 — + 1 — 6 6 6 2 — × 2 — × 3 — 3 11 2
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