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
88 + 10 = ______
62 + 20 = ______
87 − 10 = ______
58 + 10 = ______
77 + 20 = ______
24 − 10 = ______
59 + 20 = ______
46 + 20 = ______
12 + 20 = ______
60 + 20 = ______
23 − 10 = ______
1 × 10 = ______
41 − 10 = ______
35 + 20 = ______
76 + 10 = ______
86 − 10 = ______
70 − 10 = ______
76 + 20 = ______
63 + 20 = ______
8 × 10 = ______
