Answers - Understand Place Value Worksheet

Answers - Spotting Tens

Addresses the following 1st Grade standard from the Common Core State Standards for Mathematics:
Number and Operations in Base Ten 1.NBT Understand place value.
2. Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
a. 10 can be thought of as a bundle of ten ones — called a “ten.”
b. The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
c. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).

Circle the spots on the leopards in sets of ten.

Count the sets and the spots left over.

Put the total number in the box.

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