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
9 × 10 = ______
47 + 10 = ______
48 − 10 = ______
79 + 10 = ______
72 + 10 = ______
5 × 10 = ______
26 + 10 = ______
47 + 20 = ______
23 + 20 = ______
8 × 10 = ______
25 − 10 = ______
70 + 10 = ______
89 + 20 = ______
67 − 10 = ______
22 − 10 = ______
4 × 10 = ______
92 − 10 = ______
67 + 10 = ______
2 × 10 = ______
50 + 10 = ______
