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
69 + 10 = ______
26 − 10 = ______
79 + 10 = ______
2 × 10 = ______
43 + 20 = ______
24 + 20 = ______
93 − 10 = ______
6 × 10 = ______
51 + 10 = ______
80 − 10 = ______
3 × 10 = ______
84 + 10 = ______
43 − 10 = ______
94 − 10 = ______
43 + 10 = ______
41 + 10 = ______
79 + 20 = ______
41 + 20 = ______
92 − 10 = ______
22 + 20 = ______
