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 = ______
40 − 10 = ______
74 − 10 = ______
62 + 20 = ______
45 + 20 = ______
70 + 10 = ______
65 + 20 = ______
4 × 10 = ______
54 + 20 = ______
7 × 10 = ______
60 + 20 = ______
50 + 10 = ______
87 + 20 = ______
22 − 10 = ______
76 + 10 = ______
98 − 10 = ______
74 + 20 = ______
78 + 10 = ______
9 × 10 = ______
8 × 10 = ______
