问题
填空题
口算26×2=?,可以先算______×______=______,再算______×______=______,最后算______+______=______.
答案
口算26×2,可以先算20×2=40,再算6×2=12,最后算40+12=52.
故答案为:20,2,40,6,2,12,40,12,52.
口算26×2=?,可以先算______×______=______,再算______×______=______,最后算______+______=______.
口算26×2,可以先算20×2=40,再算6×2=12,最后算40+12=52.
故答案为:20,2,40,6,2,12,40,12,52.