7516— ÷ — = — ÷ — = 44471711 — + — = 80% ÷ — =556 5816— ÷ — = — × — = 6775112 - — = 9 + — = 83631— + — = 3 - — = 54310418— ÷ — = — + — = 95591751 ÷ 17 + 97 × 6 2%x4.4+0.29=85+31= 790-230=30+30=720÷60=23+0.1=0.6×0.6=7.8÷0.6= 7.78-0.59=6.4÷0.04=89.8-9=10.5÷0.05=+ 16 = 72 7 + 7.3 + 3 + 2.7 250 × 0.32 × 1252 : x = 32 : 4.5 4x - 0.5×8 = 7.5
( 1 — 1 7 2 + — + — )×64 4 8 1 — ÷ 45 + 3 — × 1 — 4 4 45 1 — × 8 — ÷ 1 — × 8 — 2 5 2 5 7 — : x = 6 — : 0.5 8 5 4 — + 1 — + 1 — + 6 — 5 7 5 7 20%x - 30 = 46 x - 8 — = 9 — 7 8 4 - 1 — - 8 — 9 9 6 — + 7 — + 1 — 5 4 5 1 — × 2 — × 2 — 2 7 1
5 7 1 6 — + — = — × — = 2 2 2 5 16 2 7 — ÷ — = 55% ÷ — = 7 7 8 5 8 1 1 — + — = — × — = 6 7 2 5 5 3 8 ÷ — = 4 + — = 4 2 6 1 4 — + — = 3 ÷ — = 7 3 3 9 1 6 1 — ÷ — = — + — = 8 2 7 4 1442 ÷ 14 + 56 × 4 2%x 4-0.27=52-33= 620-210= 11×70=550÷50=90-0.4=0.2×0.2=9÷0.5= 8.39+0.38=1.1×0.9=5.4÷0.02= 7-0.03= + 16 = 43
9.9 + 7.8 + 0.1 + 2.2 0.25 × 0.32 × 125 6 : x = 64 : 8.7 7x - 0.5×5 = 8.5
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