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
84 + 20 = ______
5 × 10 = ______
30 − 10 = ______
50 + 10 = ______
54 + 20 = ______
57 − 10 = ______
30 + 20 = ______
9 × 10 = ______
8 × 10 = ______
62 − 10 = ______
31 + 10 = ______
26 + 10 = ______
57 + 20 = ______
56 + 20 = ______
86 + 20 = ______
22 − 10 = ______
36 + 20 = ______
3 × 10 = ______
37 + 20 = ______
54 − 10 = ______
