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
44 − 10 = ______
45 − 10 = ______
34 − 10 = ______
86 + 10 = ______
7 × 10 = ______
50 + 20 = ______
63 + 20 = ______
25 + 10 = ______
65 − 10 = ______
89 + 10 = ______
85 − 10 = ______
21 − 10 = ______
66 + 20 = ______
62 + 20 = ______
21 + 10 = ______
35 + 10 = ______
65 + 10 = ______
5 × 10 = ______
32 + 10 = ______
9 × 10 = ______
