Unit4Topic1WhatcanIdoforyou?21twenty-oneLearnthenumbers21-2920twentytwenty-onetwenty-twotwenty-threelearnthenumbers21-29twenty-sixtwenty-fourtwenty-fivelearnthenumbers21-29twenty-wenty-seventwenty-eightlearnthenumbers21-ytwenty2050607080fiftysixtyseventyeightytytytytytytytyty2aLook,listenandlearneighty-sevenforty-sixfifty-five465587100onehundredyuan101onehundredandoneyuan151onehundred(and)fifty-oneyuan362threehundred(and)sixty-twoyuan151onehundred(and)fifty-one362threehundred(and)sixty-two(数字记忆口诀)
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