1 There are 16 pencils in a pack. How many pencils in 5 packs? Use repeated addition to help you. 5 × 16 = + + + + = 10 + 10 + 10 + 10 + 10 + 10 + 6 + 6 + 6 + 6 + 6 = + = There are pencils in 5 packs. 2 There are 16 pencils in a pack. How many pencils in 6 packs? Use multiplication to help you. 16 × 6 = × 6 = × = + = There are pencils in 6 packs.
There are 13 marbles in a bag. How many marbles are in the following number of bags? (a) 3 bags (b) 5 bags (c) 4 bags (d) 6 bags (e) 10 bags (f ) 2 bags
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