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 = ______
74 + 10 = ______
7 × 10 = ______
62 − 10 = ______
36 + 20 = ______
5 × 10 = ______
58 − 10 = ______
46 + 10 = ______
34 + 20 = ______
61 + 20 = ______
72 − 10 = ______
14 + 10 = ______
32 + 20 = ______
41 + 10 = ______
33 − 10 = ______
26 − 10 = ______
73 − 10 = ______
75 + 10 = ______
35 − 10 = ______
57 + 10 = ______
