Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Crossing Zero
0
%
0
0
0
Back
Restart
-85-6
-91
Oops!
Okay!
-12-4
-16
Oops!
Okay!
4-17=
-13
Oops!
Okay!
The temperature was -17℃. It rose by 23℃. What is the temperature now?
6℃
Oops!
Okay!
The Sun's temperature is 5,499℃. Venus is 464℃. What is the difference in temperature?
5,035℃
Oops!
Okay!
4-12=
-8
Oops!
Okay!
New York is 8℃. Barcelona is 28℃. What is the difference in temperature?
20℃
Oops!
Okay!
The temperature was 5℃. It fell by 30℃. What is the temperature now?
-25℃
Oops!
Okay!
36-45=
-9
Oops!
Okay!
What is the difference in the temperatures water freezes and boils at?
100℃
Oops!
Okay!
-20+-5
-25
Oops!
Okay!
-2+2=
0
Oops!
Okay!
-5--5=
0
Oops!
Okay!
What is the difference between -4 and 2?
6
Oops!
Okay!
What is the difference between 10 and -10?
20
Oops!
Okay!
What is the difference between -5 and -25?
20
Oops!
Okay!
20-25=
-5
Oops!
Okay!
Moscow is -12℃. Rio is 42℃. What is the difference in temperature?
54℃
Oops!
Okay!
75--10=
85
Oops!
Okay!
-30+17
-13
Oops!
Okay!
-5+8=
3
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies