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
76 + 10 = ______
51 − 10 = ______
26 + 20 = ______
45 + 20 = ______
42 + 20 = ______
92 − 10 = ______
43 + 10 = ______
70 + 20 = ______
3 × 10 = ______
48 + 20 = ______
63 − 10 = ______
78 + 20 = ______
17 + 20 = ______
16 + 20 = ______
55 − 10 = ______
1 × 10 = ______
4 × 10 = ______
57 − 10 = ______
55 + 10 = ______
6 × 10 = ______
