您选择的知识点:
  • 两位数加一位数、整十数删除

1编号:130155题型:单选题测试正确率:0%

2编号:130154题型:填空题测试正确率:0%

想一想,填一填.
25+40=?,先算20+____=____,再算5+____=____.

3编号:130153题型:填空题测试正确率:0%

想一想,填一填.
25+4=?,先算5+____=____,再算20+____=____.

4编号:130152题型:填空题测试正确率:0%

5编号:130151题型:填空题测试正确率:0%

6编号:130150题型:填空题测试正确率:0%

7编号:130149题型:填空题测试正确率:0%

8编号:130148题型:填空题测试正确率:0%

9编号:130147题型:填空题测试正确率:0%

10编号:130146题型:填空题测试正确率:0%

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