Counting and grouping.

We have been counting and grouping into 2s, 5s and 10s.

"These are in groups of 5, there are 20 groups."

"We are making groups of 10."

"I've made 6 groups of 10."

"We made nine groups of 10 so we wanted one more group to get to one hundred."

"We've got three groups of ten."

"We've made ten, five times."

"I've made five sets of ten."

"We've made three lots of ten."

"These are grouped in 2s."

"I've made 8 twos."

"I've got eight groups of two."

"This is fifteen twos."

"I made 11 lots of two."

"We counted these in 5s."

"This is five groups of five. I've got 25."

"I've made eight fives."

"We looked at the symbol X, it means groups, sets or lots of.