Show:
Rounding
Solve for n
Number Sentence
Missing Number
100
Round to the nearest ten 27
30
100
9=7+n
n=2
100
Leo has 13 marbles and Bobby has 17 marbles. What number sentence would show how many more marbles Bobby has than Leo?
17-13=4
100
11+4=__+11
4
200
Round to the nearest ten 64
60
200
25-n=16
n=9
200
Sarah has 2 dogs and Allie has 11 cats. What number sentence shows how many pets they have all together?
11+2=13
200
12+3=3+__
12
300
Round to the nearest hundred 321
300
300
78=57+n
n=21
300
Liz has 5 markers and Joe has 9 markers. What number sentence shows how many more markers Joe has?
9-5=4
300
3+4=4+__
3
400
Round to the nearest hundred 769
800
400
35-n=17
n=18
400
Molly has 15 hot wheels and Mark has 9. What number sentence shows how many less hot wheels Mark has?
15-9=6
400
(5+4)+6=(6+5)+__
4
500
Round to the nearest ten 389
390
500
60=74-n
n=14
500
Conrad has 8 crayons and Jenny has 3 crayons. What number sentence shows how many less crayons Jenny has?
8-3=5
500
(3+2)+7=(7+3)+__
2