, , 6 tens and 0 ones, 8 tens and 9 ones, 3 tens and 2 ones, 20 ones, 1 ten and 9 ones, , , , 1 ten and 6 ones, , 2 tens and 7 ones, 6 tens and 5 ones, 8 tens and 0 ones, .

Place Value

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?