28 + 33 =
61
36 - 10 =
26
Estimate the sum: 45 + 26 =
Estimate the difference 78 - 42 =
80-40=40
The restaurant had 54 bottles of ketchup and 25 bottles of mustard in the storage room. How many fewer bottles of mustard than ketchup did they have?
54-25=29
88 + 22 =
110
45 - 12 =
33
Estimate the sum 31 + 38 =
30+ 40=70
Estimate the difference: 62 - 37 =
60-40=20
Jessie had 16 lemons. She brought 20 more to make lemonade. How many does she have now?
16+20=36
37 + 31 =
68
62 - 47 =
15
Estimate the sum: 21+16
20+20=40
Estimate the difference 80 - 21 =
80-20=60
There were 64 pear trees in the orchard. Michael planted 23 more. How many trees are in the orchard now?
64+23= 87
67 + 23
90
54 - 17 =
37
Estimate the sum: 73 + 15 =
70+20=90
Estimate the difference: 94 - 24 =
90-20=70
24-16=8
55 + 15 =
70
83 - 26 =
57
Estimate the sum: 51+49
50+50=100
Estimate the difference 99-11 =
100-10=90
54+26=80