【题目】口算.
4×200=________ | 50×12=________ | 7×21=________ | 350÷7=________ |
20×300=________ | 35×10=________ | 5×18=________ | 400÷4=________ |
【题目】口算.
4×200=________ | 50×12=________ | 7×21=________ | 350÷7=________ |
20×300=________ | 35×10=________ | 5×18=________ | 400÷4=________ |