( 1 — 692+ — + — )×80 58 1 —÷ 36 + 7 —× 1 — 8 8365 —× 2 —÷ 5 —× 2 — 29297 — : x= 6 — : 0.3 8 7 2 —+ 2 —+ 1 —+ 1 — 333332%x+ 18= 60x× 1 —= 1 — 36 3- 1 —- 1 — 224 —+ 5 —+ 1 — 3931 —× 2 —× 2 — 291
7 7 1 7 — + — = — ÷ — = 6 6 6 6 11 8 1 — - — = 45% × — = 9 9 5 4 4 1 3 — + — = — × — = 5 5 8 2 4 7 4 - — = 3 + — = 3 6 1 4 1 — ÷ — = 4 × — = 9 5 5 4 8 7 1 — × — = — ÷ — = 3 7 8 8 3536 ÷ 17 + 64 × 7 4%x 2÷0.02=77-24= 600+320= 20×80=640÷40=24+0.6=0.95×0.3= 9.8÷0.2= 1.78+0.76=8.4+0.23= 7.2÷0.06= 184+32= + 23 = 69
8.8 + 6.4 + 1.2 + 3.6 25 × 3.2 × 0.125 10 : x = 10 : 0.3 5x + 0.5×8 = 7
( 1 — 1 7 2 + — + — )×60 5 6 1 — ÷ 20 + 3 — × 1 — 4 4 20 5 — × 8 — ÷ 5 — × 8 — 2 3 2 3 6 — : x = 1 — : 0.5 7 7 5 — + 1 — + 1 — + 2 — 6 3 6 3 8%x + 15 = 43 x - 5 — = 1 — 4 8 4 - 1 — - 1 — 2 2 7 — + 5 — - 1 — 6 6 6 2 — × 2 — × 3 — 3 9 2
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