81-29=________ | 36+25=________ | 72÷8=________ | 9×5=________ |
70÷9=________ | 34÷8=________ | 9时+2时=________ | 12时15分-9时=________ |
6吨-4吨500千克=________ | 3千米50米-1000米=________. |
81-29=________ | 36+25=________ | 72÷8=________ | 9×5=________ |
70÷9=________ | 34÷8=________ | 9时+2时=________ | 12时15分-9时=________ |
6吨-4吨500千克=________ | 3千米50米-1000米=________. |