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
12 + 10 = ______
7 × 10 = ______
9 × 10 = ______
26 − 10 = ______
88 + 10 = ______
35 − 10 = ______
47 + 10 = ______
53 + 20 = ______
89 − 10 = ______
63 − 10 = ______
57 + 20 = ______
78 + 10 = ______
76 + 20 = ______
25 + 20 = ______
21 − 10 = ______
61 + 20 = ______
51 + 10 = ______
18 + 10 = ______
98 − 10 = ______
43 − 10 = ______
