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$8.4 - 0.4 =$
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$8.4 - 4 =$
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$20.1 - 16.7 =$
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$12.1 - 0.9 =$
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$39.4 + 0.5 =$
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$19.8 - 9.5 =$
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$13.5 + 6.5 =$
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$16.7 - 8.9 =$
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$16.7 + 8.9 =$
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$14.7 + 14.7 =$
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$5.9 + 3.2 =$
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$3.2 - 2.7 =$
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$40.1 + 4.1 =$
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$40.1 - 4.1 =$
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$100 - 9.2 =$
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$22.3 + 3.8 =$
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$1.5 + 8.5 =$
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$7 + 2.6 =$
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$32 + 0.72 =$
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$9.26 + 0.74 =$
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$100 + 6.5 =$
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$0.71 - 0.41 =$
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$1.3 - 0.4 =$
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$2.4 - 0.7 =$
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$3.8 - 0.9 =$
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$4.2 - 1.6 =$
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$7.5 - 0.5 =$
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$9.6 - 9 =$
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$9.2 - 4.5 =$
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$10 - 0.2 =$
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$4 - 2.5 =$
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$1 - 0.1 =$
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$1 - 0.01 =$
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$8.6 - 6 =$
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$5.2 - 3 =$
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$1 - 0.3 =$
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$2 - 1.5 =$
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$0.5 - 0.15 =$
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$10 - 7.2 =$
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$80.7 - 0.7 =$
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$3.02 + 2.3 =$
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$0.6 + 5.98 =$
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$10 + 2.8 =$
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$10 - 9.3 =$
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$1 - 0.72 =$
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$8 + 0.08 =$
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$4.4 - 0.4 =$
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$7.15 + 0.85 =$
答案
$6.3 - 5.3 =$
答案
$10.3 - 8.8 =$
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$0.88 + 0.12 =$
答案
$1.6 + 8.4 =$
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$1 - 0.45 =$
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$5.7 - 0.7 =$
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$4.8 + 5.2 =$
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$10 - 0.9 =$
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$1.08 + 0.92 =$
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$3.2 + 6.8 =$
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$5.83 - 0.83 =$
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$1.7 - 0.9 =$
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$24.3 - 7.2 =$
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$4.5 + 0.98 =$
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$54.8 + 0.8 =$
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