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
93 − 10 = ______
83 + 20 = ______
40 − 10 = ______
89 − 10 = ______
88 + 20 = ______
7 × 10 = ______
69 + 20 = ______
35 + 20 = ______
67 + 20 = ______
34 + 10 = ______
8 × 10 = ______
25 + 10 = ______
76 + 10 = ______
38 − 10 = ______
57 + 20 = ______
77 + 20 = ______
74 + 20 = ______
9 × 10 = ______
4 × 10 = ______
42 − 10 = ______
