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
26 − 10 = ______
4 × 10 = ______
8 × 10 = ______
15 + 10 = ______
63 + 20 = ______
76 + 20 = ______
29 + 20 = ______
1 × 10 = ______
65 + 20 = ______
87 + 20 = ______
49 + 20 = ______
7 × 10 = ______
83 − 10 = ______
43 + 20 = ______
62 + 20 = ______
40 − 10 = ______
78 + 20 = ______
3 × 10 = ______
6 × 10 = ______
80 − 10 = ______
