Draw the number using base 10 blocks:
56
5 tens 6 ones
Regroup the ones as tens:
3 tens and 16 ones
4 tens and 6 ones
42+ 11=?
53
Add 2 to each number:
22, 32, 42, 52
24, 34, 44, 54
Ray travels 15 miles. Holly travels 9 miles. How many more miles does Ray travel than Holly?
6 miles
Draw the number using base 10 blocks:
79
7 tens 9 ones
Regroup the ones as tens:
7 tens and 18 ones
8 tens and 8 ones
18+22=?
40
Add 10 to each number:
37, 47, 57, 67
47, 57, 67, 77
Kerry see 19 planes at the festival. 8 planes do tricks. Kerry sees 12 more planes on the way home. How many planes does Kerry see?
31 planes
Draw the number using base 10 blocks:
12
1 ten 2 ones
2 tens and 10 ones
3 tens
13+25+4=?
42
Round to find the about answer:
45+23=?
50+20=70
Marla counts 18 people riding in one car. she counts double that number in the next car. How many people ride in both cars?
54 people
Draw the number using base 10 blocks:
142
1 hundred 4 tens 2 ones
Regroup the ones as tens:
0 tens and 20 ones
2 tens
45+15+21=?
81
Round to find the about answer:
74+19=?
70+20=90
Joes and Jim take a two-day trip. they ride 15 miles the first day. the next day they ride 7 more miles than the first day. How many miles is the trip?
37 miles
Draw the number using base 10 blocks:
695
6 hundreds 9 tens 5 ones
3 tens and 11 ones
4 tens and 1 one
13+78+20=?
111
Round to find the about answer:
26+45=?
30+50=80
Garry collects 23 shells at the beach. Joe and Kim collects 32 shells each. How many shells did they collect all together?
87 shells