Counting Toys by Twos Small 320×197 Medium 640×394 Large 1024×631 Download Tiff Original 2400×1478 | (657.9 KB) Description Illustration of toys that can be counted by twos. It can be used to write mathematics story problems involving addition, subtraction, and counting. Keywords add, adding, addition, counting, counting by two, Elephants, math, mathematics, story problem, story problems, subtract, subtraction, toys, twos Galleries Story Problems Source: Ada Van Stone Harris and Lillian McLean Waldo First Journeys In Numberland (New York: Scott, Foresman & Company, 1911) 68
