Solve real world problems with addition and subtraction within 1,000. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models and place ...

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Tricky Math Riddles: The brain needs regular exercise to function well, and nothing stimulates it like solving riddles, puzzles, and brain teasers. These are fun and easy-to-do things that can work ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hello, lovely learners. My name's Miss White and I'm so excited to teach you today. For this lesson you ...