lesson
Understanding Addition Is Commutative
Show that numbers can be added in any order to give the same sum (e.g. 3 + 5 = 5 + 3).

Show that numbers can be added in any order to give the same sum (e.g. 3 + 5 = 5 + 3).
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1st Grade · Math · UK National Curriculum
10 lessons
Read, write, and interpret addition statements, adding one-digit and two-digit numbers to 20 including zero.
read, write and interpret mathematical statements involving addition (+), subtraction (–) and equals (=) signs
add and subtract one-digit and two-digit numbers to 20, including zero