问题
解答题
估算.
478÷8
213×5
423÷7
597÷6.
答案
(1)478÷8≈480÷8=60;
(2)213×5≈200×5=1000;
(3)423÷7≈420÷7=60;
(4)597÷6≈600÷6=100.
估算.
478÷8
213×5
423÷7
597÷6.
(1)478÷8≈480÷8=60;
(2)213×5≈200×5=1000;
(3)423÷7≈420÷7=60;
(4)597÷6≈600÷6=100.