without regrouping
31 + 27 =
58
23 rounded to the nearest tens
20
Emily's baseball team is playing a baseball game to raise money for a children's hospital. Emily's team scored 11 runs in the game. The other team scored 8 runs. How many runs were scored in all?
19 runs
11 + 13
24
38 rounded to the nearest tens
40
24 + 34
58
42 rounded to the nearest tens
40
58 + 41
99
75 rounded to the nearest tens
80
47 + 26 = ___
73
43 + 55
98
93 rounded to the nearest tens
90
66 + 34 = ____
86