两步应用题
Two-Step Word Problems
能运用加法和减法解决100以内的一步及两步应用题，未知数可以在不同位置。
Solve one- and two-step word problems within 100 using addition and subtraction, with unknowns in all positions
学习证据 / Evidence
- 解决涉及增加和减少的两步应用题
- 用含有未知数符号的等式表示应用题
- 解决100以内的比较问题（多多少/少多少）
- Solve a two-step word problem involving adding to and taking from
- Represent a word problem with an equation using a symbol for the unknown
- Solve comparison problems (how many more/fewer) within 100
评估问题 / Assessment
如果一道应用题说‘Sam had 78 stickers, gave some away, and now has 45 — how many did he give away?’，{{name}}能判断该用哪种运算并求出答案吗？
If a word problem says 'Sam had 78 stickers, gave some away, and now has 45 — how many did he give away?', can {{name}} work out which operation to use and find the answer?