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
59 + 20 = ______
43 + 10 = ______
70 + 20 = ______
97 − 10 = ______
4 × 10 = ______
2 × 10 = ______
7 × 10 = ______
46 + 10 = ______
41 − 10 = ______
12 + 10 = ______
80 + 10 = ______
14 + 10 = ______
62 − 10 = ______
65 + 10 = ______
8 × 10 = ______
1 × 10 = ______
78 + 10 = ______
94 − 10 = ______
59 − 10 = ______
85 + 20 = ______
