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
79 − 10 = ______
33 + 10 = ______
59 − 10 = ______
81 + 10 = ______
7 × 10 = ______
8 × 10 = ______
4 × 10 = ______
74 − 10 = ______
72 − 10 = ______
36 + 20 = ______
40 + 10 = ______
54 − 10 = ______
2 × 10 = ______
42 + 10 = ______
5 × 10 = ______
55 − 10 = ______
34 − 10 = ______
26 − 10 = ______
88 + 20 = ______
6 × 10 = ______
