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
43 + 10 = ______
85 + 20 = ______
11 + 10 = ______
8 × 10 = ______
47 + 20 = ______
55 − 10 = ______
51 − 10 = ______
49 − 10 = ______
61 − 10 = ______
13 + 20 = ______
77 − 10 = ______
35 − 10 = ______
26 + 10 = ______
41 + 10 = ______
5 × 10 = ______
69 + 10 = ______
42 − 10 = ______
72 + 20 = ______
66 + 20 = ______
68 + 20 = ______
