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Mathematics, 12.06.2020 15:57 jeffljr7385
Urgent question please solve and only if you know it please. Most accurate gets branliest and a new follower (me).
Step one: round each number.
step 2: add the two 10s, use your Smart second grade strategies.
1) 17+23 ---> ___+___=___
2) 42+37 ---> ___+___=___
3) 9+73 ---> ___+___=___
4) 68+21 ---> ___+___=___
5) 12+81 ---> ___+___=___
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