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
4 × 10 = ______
28 − 10 = ______
9 × 10 = ______
8 × 10 = ______
74 + 20 = ______
81 + 10 = ______
50 + 10 = ______
73 − 10 = ______
6 × 10 = ______
2 × 10 = ______
71 − 10 = ______
54 + 20 = ______
37 + 20 = ______
26 − 10 = ______
60 + 10 = ______
43 + 20 = ______
14 + 10 = ______
62 − 10 = ______
61 − 10 = ______
7 × 10 = ______
