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 = ______
71 + 10 = ______
54 − 10 = ______
51 + 20 = ______
3 × 10 = ______
32 + 20 = ______
99 − 10 = ______
35 + 10 = ______
72 − 10 = ______
40 + 10 = ______
69 + 10 = ______
55 + 20 = ______
43 + 10 = ______
78 − 10 = ______
62 + 10 = ______
33 + 10 = ______
8 × 10 = ______
88 + 20 = ______
53 + 10 = ______
48 − 10 = ______
