"Addition sentences" refers to mathematical equations that involve adding numbers together. It's a way of writing out a problem or statement using the "+" symbol to show the combination or total of two or more numbers.
Full definition
Emely's strategy, breaking the two - digit numbers apart and adding tens and ones separately, then recombining them in a series
of addition sentences, was valid, efficient, and logical.
The standards covered in Unit 9 are: using equal groups and repeated addition as ways to solve multiplication problems, draw an array to solve a multiplication situation, write
repeated addition sentences and multiplication expressions from pictures and / or a multiplication word problem, making a model for multiplication and division situations, number lines to skip count multiples, vocabulary for multiplication and division, dividing into equal groups, and repeated subtracting to divide.
In pairs, allow the students to write a problem, swap with their partner and have the partner solve and then use the Commutative Property of Addition to write the
related addition sentence.
The idea is that the children choose
an addition sentence and place it in the first box, they need to say it e.g. 2 +3.
Students simply need to count how many dots in all and fill in
the addition sentence and then write the sum's answer.
Below are six versions of our grade 3 math worksheet on completing a whole number; students must calculate the number missing from
the addition sentence shown.
Gary: «Do you think you would be able to use
an addition sentence or a multiplication sentence to get the same answer?»