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35.35cm - 12.4cm =	cm
990 ÷ 3 =
13 × 6 =
312.50 - 70.40 =
13.246 + 7.843 =
7.852 - 7.129 =
420 × 0.5 =
12.6kg + 18.3kg =	kg
32m - 11.6m =	m
56.4cm + 16.15cm =	cm