Number line
If I start at 20 and want to ADD 1 ten where will I land on the number line?
30
Find 20 on the hundreds chart. How many tens do I need to ADD to get to 50?
3 tens
What is 10 more than 50?
60
What is 20 more than 60?
80
Use the plus sign model and hundreds chart to find 1 more, 1 less, 10 more, and 10 less than 35
36, 34, 45, 25
If I start at 60 and want to ADD 3 tens where will I land on the number line?
90
Find 30 on the hundreds chart. How many tens do I need to ADD to get 70?
4 tens
What is 10 less than 30?
20
What is 20 less than 70?
50
How many tens sticks make 100?
(Hint: Think about what we talked about yesterday with the ant story)
10
If I start at 40 and want to ADD 4 tens where will I land on the number line?
80
Find 80 on the hundreds chart. How many tens do I need to SUBTRACT to get to 70?
1 ten
What is 10 more than 67?
77
What is 20 more than 38?
58
What is Ms. W's favorite day of the week?
Friday!
If I start at 50 and want to SUBTRACT 2 tens where will I land on the number line?
30
Find 90 on the hundreds chart. How many tens do I need to SUBTRACT to get to 70?
2 tens
What is 10 less than 65?
55
What is 20 less than 92?
72
What is 10 MORE than 100?
110
If I start at 30 and want to ADD 1 ten where will I land on the number line?
AND
If I start at 30 and want to SUBTRACT 1 ten where will I land on the number line?
40 and 20
Find 40 on the hundreds chart. How many jumps do I need to take to get to 70?
AND
Find 40 on the hundreds chart. How many jumps do I need to take to get to 10?
3 jumps, 3 jumps
What is 10 more than 42?
AND
What is 10 less than 42?
52 and 32
What is 20 more than 23?
AND
What is 20 less than 23?
43 and 3
What is 20 MORE than 100?
120