用英文写出下列算式。
1. 2 + 3 = 5 2. 1 + 7 = 8
3. 4 + 5 = 9 4. 10 - 6 = 4
1. two + three = five 2. one + seven = eight
3. four + five = nine 4. ten - six = four
用英文写出下列算式。
1. 2 + 3 = 5 2. 1 + 7 = 8
3. 4 + 5 = 9 4. 10 - 6 = 4
1. two + three = five 2. one + seven = eight
3. four + five = nine 4. ten - six = four