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
1 × 10 = ______
89 − 10 = ______
36 − 10 = ______
6 × 10 = ______
40 + 10 = ______
7 × 10 = ______
61 + 20 = ______
21 + 20 = ______
86 + 10 = ______
84 + 10 = ______
66 + 10 = ______
8 × 10 = ______
78 + 20 = ______
9 × 10 = ______
76 + 20 = ______
76 + 10 = ______
78 + 10 = ______
46 − 10 = ______
4 × 10 = ______
64 + 20 = ______
