(答え) |
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(1) |
(2cm+4cm)×5cm÷2=15cu |
(答え) 15cu |
(2) |
(5m+6m)×6m÷2=33u |
(答え) 33u |
(3) |
(8km+12km)×11km÷2=110ku |
(答え) 110ku |
(4) |
(12cm+9cm)×10cm÷2=105cu |
(答え) 105cu |
(5) |
(28m+34m)×15m÷2=465u |
(答え) 465u |
(6) |
(61km+42km)×54km÷2=2781ku |
(答え) 2781ku |
(7) |
(2.8cm+9.2cm)×4.2cm÷2=24.2cu |
(答え) 24.2cu |
(8) |
(7.1m+6.3m)×8.4m÷2=56.28u |
(答え) 56.28u |
(9) |
(3.5km+5.5km)×4.5km÷2=20.25ku |
(答え) 20.25ku |
(10) |
(12.5cm+8.3cm)×10.5cm÷2=109.2cu |
(答え) 109.2cu |
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