Review doubling and halving 2 digit numbers and some 3 digit numbers with printable 'I Have...Who Has?' / Loop Games. 3 differentiated 30-card sets to practice finding double and half. They could be used by a whole class, groups (perhaps racing against other groups) or as a dominoes game by individuals or pairs. Good for Math Centers, starters, early finishers tasks etc.
I have some fun Doubles and Halves Review Puzzles Worksheets in these 2 packets:
Each set forms a continuous loop so you can start with any card. Share out the cards among the players. In smaller groups, students may have several cards. A student reads aloud both sides of one of their cards, saying “I have…[reads out the number on the left], Who has… …[reads out the calculation on the right]?" All students then check to see if they have the answer to this on one of their cards. If they do, they read out their card in the same way as the previous player, and so on until the end of the loop is reached.
The lower ability version focuses on smaller two-digit numbers and multiples of 10, the middle ability version extends to larger two-digit numbers and the higher ability version includes some 3-digit numbers. Questions include ‘Double’, ‘Halve’, ‘x2’, ‘÷2’, with the higher ability version also including “50% of”. The higher ability version also includes halving some odd numbers to make a decimal number. The text on each set is a different color to help you keep them separate. If printing in black and white, each set could be printed on different colored card stock or paper before being laminated.
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