Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
8 × 10 = ______
31 − 10 = ______
53 + 10 = ______
86 + 10 = ______
75 + 10 = ______
82 + 20 = ______
9 × 10 = ______
1 × 10 = ______
51 − 10 = ______
84 − 10 = ______
64 + 10 = ______
4 × 10 = ______
28 − 10 = ______
38 − 10 = ______
3 × 10 = ______
84 + 10 = ______
56 + 10 = ______
79 + 20 = ______
61 + 20 = ______
26 − 10 = ______
