Page 56 - Supplement_Primary-1_Neat

Chat about Math
ADDING

THREE-DIGIT

NUMBERS

et us find out how many sets of school uniforms
Paula needs to sew. Let us add the population of

Lstudents for Grade 1, Grade 2, and Grade 3.

Place Value 100 10 1

1
Grade 1 students 1 1 2 100 10 1 1

Grade 2 students 1 3 5 100 10 10 1 1 1
10
1

Grade 3 students + 1 4 8 100 10 10 1 1 1 1 1 1 1
1
10 10

Putting all the s together, we get 15 s. Ten s make one
1
1
1
and we are left with five s.
10 1
1
Grade 1 students 1 1 2 100 10 10 1 1

Grade 2 students 1 3 5 100 10 10 1 1 1 1
10 1

Grade 3 students + 1 4 8 100 10 10 1 1 1 1
10 10 1 1 1 1

5

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