看一看,想一想,填一填。1. +
= ____________2.
+
= ____________3.
-
= ____________4.
+
= ____________
试题答案
1. twenty 2. sixteen 3. fifteen 4. seventeen
看一看,想一想,填一填。1. +
= ____________2.
+
= ____________3.
-
= ____________4.
+
= ____________
1. twenty 2. sixteen 3. fifteen 4. seventeen