What fact is missing from the family?
8+7=15
7+8=15
15-7=8
?
What is 15-8=7
100
72+18=
What is 90
100
34-19=
What is 15
100
Round to the nearest 10
63
What is 60
100
A bakery had 75 cupcakes Wednesday morning. By Wednesday afternoon they had sold 37 cupcakes. How many cupcakes had not been sold?
What is 38 cupcakes
200
What fact is missing?
9+5=14
14-5=9
14-9=5
?
What is 5+9=14
200
34+25=
What is 59
200
45-27=
What is 18
200
Round to the nearest ten
757
What is 760
200
Zach watched birds at his bird feeder. He counted 18 birds in the morning and 29 birds in the afternoon. How many birds did Zach count in all?
What is 47 birds
300
What fact is missing?
16-7=9
16-9=7
7+9=16
?
What is 9+7=16
300
55+37=
What is 92
300
68-11=
What is 57
300
Round to the nearest Hundred
888
What is 900
300
A train going into Houston has 218 passengers. A train going out of Houston has 129 passengers. Give an estimate for the total number of passengers on the two trains.
What is About 350 passengers
400
What facts are missing?
15-9=6
9+6=15
What is 15-6=9; 6+9=15
400
49+29=
What is 78
400
86-13=
What is 73
400
Round to the nearest Hundred
835
What is 800
400
The school store has 451 pencils on the first day of school. On the last day of school, there were 147 pencils left. About how many pencils did the school store sell in all?
What is About 300 pencils
500
What facts are missing?
8+3=11
11=3+8
What is 11-3=8; 11-8=3
500
50+42=
What is 92
500
73-39=
What is 34
500
Round to the nearest Hundred.
996
What is 1,000
500
A farm stand has 22 kinds of vegetables and 11 kinds of fruits. Estimate how many more kinds of vegetables than fruits are at the farm stand.