Compare!
Which number is larger?
45 cm 54 cm
9 + 8 =
17
10 - 8 =
The dog's body is 20 cm, his head is 5 cm, and his tail is 4 cm. How many centimeters long is the dog?
29 cm
20 + 5 + 4 = 29
Count by 2:
2, ____, ____, ____, ____, ____, ____, ____,
2, 4, 6, 8, 10, 12, 14, 16
56 cm 65 cm
56 cm
19 + 3 =
22
12 - ____ = 3
9
Ms. Thackston's ribbon is 30 cm longer than Ms. Palacio's ribbon. Ms. Palacio's ribbon is 70 cm.
How long is Ms. Thackston's ribbon?
100 cm
30 + 70 = 100
Fill in the missing number:
55, _____, 57, ______
55, 56, 57, 58
100 cm is the same as 1 _______
meter
94
40 - 20 =
20
Ms. Ryan has 60 marbles. Ms. Thackston has 8 marbles less than Ms. Ryan.
How many marbles does Ms. Thackston have?
52 marbles
60 - 8 = 52
122, 123, _____, ______
124, 125
76 is the same as ____ tens and ____ ones
7 tens and 6 ones
39 + 11 =
50
100 - ____ = 40
60
My pencil is 20 cm long. Ms. Barnes' pencil is 17 cm long. How much longer is my pencil compared to Ms. Barnes?
3 cm
20 - 17 = 3
Fill in the missing number:
_____, 40, 50, _____, 70, ______, _______
30, 40, 50, 60, 70, 80,90
4 tens and 7 ones is the same as ________
47
18 + 22 =
40
90 - 45 =
45
Melanie and Sahir have a paper airplane throwing contest. Melanie's paper airplane flies 10 meters. Sahir's paper airplane flies 4 meters less than Melanie's.
a. How far did Sahir's paper airplane fly?
b. How far did their airplanes fly all together?
a. Sahir's airplane flew 6 meters
10 - 4 = 6
b. Together their planes flew 16 meters
10 + 6 = 16
Fill in the missing numbers:
____, 210, 220, _____, 240
200, 210, 220, 230, 240