71111— + — = — × — = 88851741 — ÷ — = 70% ÷ — =338 8114— × — = — × — = 7265742 + — = 4 + — = 65113— × — = 8 + — = 6843641— × — = — ÷ — = 47593296 ÷ 16 + 14 × 2 2%x745-10=58+28= 790+370=20×80=800÷50=95+0.9=0.35×0.1=9.6÷0.3= 2.15-0.98=552+25=29.6-2=14÷0.05=+ 27 = 80
1.7 + 3.9 + 8.3 + 6.1 0.25 × 3.2 × 0.1256 : x = 5 : 6.1 9x - 0.5×5 = 8.5
( 4 — 3 10 3 + — + — )×108 4 9 1 — ÷ 45 + 3 — × 1 — 4 4 45 9 — × 6 — ÷ 9 — × 6 — 4 7 4 7 7 — : x = 1 — : 0.2 6 4 4 — + 6 — - 1 — + 1 — 5 7 5 7 50%x + 18 = 56 x ÷ 1 — = 4 — 3 3 7 - 1 — + 6 — 7 7 10 — + 1 — - 1 — 9 9 9 8 — × 2 — × 9 — 9 13 8
1 5 1 4609-43= — + — = — × — = 4 4 6 580-20= 17 2 1 620-220= — + — = 85% × — = 5 5 5 14×40= 5 1 1 1950÷50= — + — = — × — = 6 2 2 898+0.7= 7 60.2×0.3= 8 + — = 9 + — =6 51.8÷0.1= 1 3 64.47+0.57= — × — = 9 ÷ — = 9 4 7822-46= 9 6 2 16÷0.04= — + — = — ÷ — = 8 5 3 31.3×0.6= 2613 ÷ 13 + 49 × 5 64%x - 22 = 56
2.3 + 9.2 + 7.7 + 0.8 25 × 0.32 × 0.125
8 : x = 10 : 8.5 9x - 0.5×5 = 10
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