Math Frog Subtraction Practice for Kids
Enhance subtraction skills with the Math Frog method! Use number lines and Math Frog tool to subtract numbers, improving accuracy and speed. Engaging video tutorials and interactive examples make learning fun and effective.
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Presentation Transcript
Wednesday Maths 27 1 2021 Maths Frog subtraction
WALT: to revise using maths frog and a number line to subtract Watch the video on Abacus: 3.19 counting up (frog tool) to find a difference We have used Maths frog before but usually with numbers below 100. As you get more confident you can begin to use fewer and bigger jumps.
Maths frog says: Always start with the baby number Jump to the next 10 (stick to this but after the first jump you can try bigger jumps: eg to 100 ) Always fill in the mini-target number under the number line then do the jump. Add up your jumps to find the total. Also keep it tidy so you can see the jumps and numbers clearly
Example: 182 158 = ___________________________________ 158 182 ___________________________________ 158 160 2 + 20 + 2 = 24 180 182
Use Frog to answer these questions: 1. 182 148 = 2. 155 166 = 3. 163 127 = 4. 171 138 = 5. 144 119 = 6. 182 145 = 7. 191 167 = 8. 164 136 = 9. 182 157 = 10.193 166 = 11.121 94 = 12.113 88 = 13.111 76 = Challenge: Start at number 7 Also try to use as few jumps as possible after the first one to the next 10. Do the think section Think: if the answer is 35, what could the question have been?
