Nick has 4 toy cars. Adrian gives Nick 4 more toy cars. How many toy cars does Nick have now? After children draw pictures, have them write a number sentence for the problem.

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the