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
72 − 10 = ______
47 + 10 = ______
23 − 10 = ______
8 × 10 = ______
94 − 10 = ______
41 + 20 = ______
21 − 10 = ______
57 + 20 = ______
78 + 20 = ______
37 − 10 = ______
5 × 10 = ______
46 + 20 = ______
44 − 10 = ______
24 + 20 = ______
58 + 10 = ______
75 + 10 = ______
40 + 10 = ______
74 − 10 = ______
9 × 10 = ______
42 − 10 = ______
